Non-Tariff Barriers, Integration, and the Trans-Atlantic Economy

This paper discusses the impact of Transatlantic Trade and Investment Partnership Agreement (T-TIP) on non-tariff barriers (NTBs) for goods and services, liberalization of public procurement markets, and greater cooperation on market regulation. It also highlights the challenges in removing NTBs and the role of distributive politics in trade negotiations. The paper uses structural gravity modeling to estimate possible trade cost reductions under T-TIP and discusses the potential economic impact on third countries.

Non-Tariff Barriers, Integration, and
the Trans-Atlantic Economy
Peter Egger
ETH Zurich, CESifo, and CEPR
Joseph Francois
University of Bern and CEPR
Miriam Manchin
University College London
Doug Nelson
Tulane University
June 2014
Abstract:

1. Introduction
In the wake of the great recession and ancillary financial crises, the European
Union and the United States launched a joint, ambitious effort in 2013 to
negotiate a comprehensive trade and investment agreement. Known as the
Transatlantic Trade and Investment Partnership Agreement (T-TIP), the
negotiation process that has ensued is supposed to bring about tariff-free trade
in goods, reduction of non-tariff barriers (NTBs) for goods and services,
liberalization of public procurement markets, and greater cooperation on market
regulation. Systemically, the negotiations have been characterized as both an
important step forward for the multilateral trading system, and an existential
threat to that same system. Given that the EU and US account collectively for a
substantial share of global production and world trade in goods and services,
these negotiations have the potential for a major economic impact on third
countries.
At this stage, the shape and coverage of a final T-TIP agreement remain
uncertain. Indeed, the T-TIP would actually be as a set of trade agreements.
While the negotiations are formally bilateral, the agenda means that they entail
the 50 States in the US and the 28 Members of the EU. A successful agreement
needs to take into account particularities of a great number of different partners
and thus on substance amounts to a new type of mini-lateral agreement. It also
needs to cover areas ranging from broad tariff concessions to sector-specific
questions of regulation. While tariff reductions are relatively straightforward, an
important ambition under T-TIP actually relates to greater coherence and
convergence of regulatory standards. Any progress on regulatory convergence
(and better cross-recognition of standards) would require enhanced cooperation
in rule making. As such the agenda is not as straightforward as tariff elimination.
Indeed, there is growing recognition that a successful T-TIP agreement would
likely combine rapid liberalization in some areas (such as tariffs) with
institutional mechanisms set up to allow progressive, long run liberalization in
1

others. Such institutional mechanisms, if they offer solutions that can be
translated to other situations, might then offer solutions to a broader set of
countries that are also grappling with regulatory barriers to trade and
investment. Alternatively, there is legitimate worry that they may instead offer
new channels for discriminatory management of trade and investment flows.
The T-TIP is attention grabbing, in part, simply because of the magnitudes
involved. From Table 1-1, together the two T-TIP partners accounted for 46
percent of global GDP and almost 60 percent of world trade. Yet most of this
trade is not actually trans-Atlantic trade. Rather, despite their collective shares
of world production and trade, trade flows between the two blocks is relatively
low compared to their trade with other regions. This is again illustrated in the
data in Table 1-1, but perhaps better visualized with Figure 1-1. Focusing first on
directions of trade, the US has far more trade with Asia than it does with Europe.
Asia counts for almost 60 percent of US exports and imports. Similarly, the
region accounts for roughly 39 percent of EU exports and imports. Other upper
and middle-income countries (Canada and Mexico primarily for the US, and
EFTA and the Euro-Med economies for the EU) account for most of remaining
trade.
To appreciate the context of T-TIP, both for the EU and US, but also for third
countries, it is also useful to focus on trade intensity, reported in the Figure 1-1 as
trade scaled by partner GDP. For example, EU and US trade with the world is
valued at roughly 13 percent of global GDP. This means that for each $100
billion in global income, we see $13.3 billion in trade involving the EU and/or the
US. In the case of Asia, for every $100 billion in GDP, there is $9.9 billion in trade
(exports and imports) with the US, and $7.6 billion in trade with the EU. Asian
trade with the EU and US combined is therefore worth 17.6 percent of Asian
GDP.1 Stark asymmetries are evident, especially with low-income countries.
For low-income countries, while trade with the US and EU is worth 18.3 percent
of their GDP, its worth roughly 0.2 percent of EU and US GDP.
1 We are fully aware that scaling trade by GDP is not the same thing as quantifying the impact on
GDP. It does however provide a useful metric for comparison.
2

Figure 1-1 Composition of Trade by Destination
note: trade excludes intra-EU flows. sources: IMF, COMTRADE, GTAP9.
Viewed in this context, though the EU and US account for high shares of GDP and
trade, in a sense the flows between them seem relatively low. For example,
while in Asia each $100 billion in exports is associated with $17.6 billion in trade
with the EU and/or the US, a similar figure for the EU and US themselves tells us
that for each $100 billion in transatlantic GDP, we see only $2.7 billion in trade in
goods and services. In other words, scaled by GDP, the EU and US both have
much more intense trade relationships with other countries and regions than
they do with each other. Much of this is may be explained by economic structure.
Both economies are mature, with high GDP shares derived from services: 75
percent of the EU value added is in services; 82.3 percent of US value added is in
services. As services are less traded, this helps explain the lower bilateral flows.
Such factors should be controlled for when we turn to gravity modelling, as
otherwise we may mislead ourselves into thinking low trade intensity means
high trade barriers. Yet even controlling for such factors, at this stage we should
already note the sense reflected in the negotiating mandate that transatlantic
trade underperforms. The logic is that with shifts in technology and organization
3

of production toward more global and regional value chains that cross
international borders, behind the border issues whose trade cost impacts were
once second or third order are increasingly important. Without necessarily
changing policy, what were once domestic regulatory issues have emerged as
potential sources of NTB-related trade costs in a world of international
production and associated returns to scale. To some extent, the US has dealt
with these changes in NAFTA with respect to its North American partners
(especially for motor vehicles). The same holds for Europe in the context of the
EU single market. The T-TIP is approached with the combined NAFTA and EU
single market experience helping to frame the current negotiations on regulatory
divergence and mutual recognition of standards.
We have organized our discussion as follows. In Section 2, we focus first on
important qualitative issues (i.e. things we do not try to quantify primarily
because we can’t) that help frame the more quantitative analysis that follows. In
Section 3, we then turn to structural gravity modelling (i.e. estimating equations
based on the trade equations in our computational model introduced in Section
4) to control for factors like economic structure and both physical and cultural
distance that affect trade flows. On this basis, we gauge possible trade cost
reductions under T-TIP, based on a mix of past experience with regional trade
agreements (RTAs) with respect to goods trade, firm-based evidence on goods-
based trade costs not addressed by past RTAs, and recent data from the World
Bank, OECD, and WTO on services barriers and recent services commitments.
With trade cost estimates in hand, we then turn to a computational model of the
world economy in Section 4. This model reflects actual production and trade in
2011. On this basis, we discuss possible impacts of T-TIP based trade cost
reductions for the EU and US economies, but also for third countries. Concluding
comments, thoughts, and ruminations are offered in Section 5.
4

Table 1-1 GDP and Trade Orientation, 2011
US EU EU & US
EU-US GDP
billion dollars 14,991 17,645 32,636
share of world GDP 21.3 25.1 46.3
Trade with world
billion dollars 4,096 5,036 8,241
share of world trade 29.4 36.2 59.3
share of own GDP 27.3 28.5 25.3
share of world GDP 5.8 7.2 13.0
Trade between EU & US
billion dollars 891 891 891
share of own GDP 5.9 5.0 2.7
share of partner GDP 5.0 5.9 2.7
share of world trade 6.4 6.4 6.4
share of own trade 21.7 17.7 10.8
Trade with Asia, Pacific
billion dollars 2,443 1,945 4,388
share of own GDP 16.3 11.0 13.4
share of partner GDP 9.9 7.7 17.6
share of world trade 17.6 14.0 31.5
share of own trade 59.6 38.6 53.2
Trade with other upper &
middle income countries
billion dollars 740 2,142 2,882
share of own GDP 4.9 12.1 8.8
share of partner GDP 5.9 17.0 22.8
share of world trade 5.3 15.4 20.7
share of own trade 18.1 42.5 35.0
Trade with low income countries
billion dollars 22 58 80
share of own GDP 0.1 0.3 0.2
share of partner GDP 5.0 13.3 18.3
share of world trade 0.2 0.4 0.6
share of own trade 0.5 1.2 1.0
note: trade excludes intra-EU flows. sources: IMF, COMTRADE, GTAP9.
5

2. Regulation, politics, and keeping NTBs in context
It should be stressed that in contrast to reducing tariffs, the removal of NTBs is
not so straightforward. There are many different reasons and sources for NTBs.
Some are unintentional barriers while others reflect deliberate public policy. As
such, for many NTBs, removing them is not possible because, for example, they
require constitutional changes, unrealistic legislative changes, or unrealistic
technical changes. Removing NTBs may also be difficult politically, for example
because there is a lack of sufficient economic benefit to support the effort;
because the set of regulations is too broad; or because consumer preferences or
language preclude a change. Indeed even where public perception is not
congruent with scientific evidence, we need to keep in mind that it's the public
that votes, not the evidence. In recognition of these difficulties, we follow recent
studies by focusing on the set of possible NTB reductions (known as “actionable”
NTBs) given that many will remain in place. Of those NTBs that can feasibly be
reduced, we focus on different levels of ambition for NTB reduction.2
This raises the issue of what might we plausibly expect to be the result of a
successful T-TIP negotiation. In addition to differences over matters of fact
(economics as a body of knowledge is far from settled on many positive issues
with respect to what drives outcomes in national economies and their
relationship to other economies), we expect difficulties to arise over matters of
genuine differences in social goals and the way those goals are embedded in
national legal orders and we also expect outcomes to be affected by distributive
struggles in the national (and in the case of the EU, in the Community level)
political arena.
2 In benchmarking studies leading into the T-TIP talks, such as ECORYS (2009), there was a
strident debate between regulators and trade officials centred on semantics and acronyms. One
man’s barrier is another man’s reasonable measure, or in other words regulatory measures
might not be deliberate barriers. While noting the importance of this distinction in some circles,
for simplicity here we will call all regulatory and non-tariff instruments that impede trade as
non-tariff barriers (NTBs) while recognizing that some of these are perfectly legitimate
measures, and in such cases the less pejorative term perhaps ought to be non-tariff measures
(NTMs). Calling them all NTBs, we focus instead on dividing the trade-restricting aspects of all
measures into those that can be reduced and those that cannot, defined elsewhere in this paper
as “actionable” and “non-actionable” NTBs.
6

Consider first distributive politics. There is now a sizable literature, in
Economics and Political Science, on the ways political struggles over the returns
to trade (and the losses realized by particular households and sectors in both the
short- and long-run) affect the outcomes of domestic trade politics and, more
relevant for the purposes of this paper, the outcomes of trade negotiations
(Grossman and Helpman, 1995a, b, Ornelas, 2005a). The usual goal of political
economy papers in general is to explain deviations from optimal policies, so it is
not surprising that most of this work emphasizes how politics cause deviations
from “Liberal trade“(Krishna, 1998, Levy, 1997, Ornelas, 2005b). 3 Certainly in
the case of T-TIP there is no shortage of special interests in both the US and
Europe seeking to use the negotiations to either increase access to foreign
markets or reduce access to domestic markets. In this paper we identify sectors
that may gain and lose from liberalization of trade between the US and the EU,
and it should not surprise us to discover that those sectors are actively lobbying
their governments on those issues.4
At the same time, contemporary negotiations between the EU and the US take
place in a context that offers interesting differences relative to expectations
based on standard models. Most obviously, a substantial amount of trade
between the US and the EU takes place in differentiated intermediate goods
along the lines of Ethier (1982). At least since the classic paper of Balassa
(1966), intra-industry trade (IIT) has been seen as less disruptive than inter-
industry trade (Brülhart, 2002, Dixon and Menon, 1997, Menon and Dixon, 1997)
and while this inference is not as well-grounded theoretically as we tend to think
(Lovely and Nelson, 2000, 2002), there appears to be empirical support for the
claim.5 Thus, just as integration among the early members of what became the
EU was eased by the relatively low adjustment costs to liberalization of trade, the
3 Though Ethier (Ethier, 1998, 2001) and Ornelas (Ornelas, 2005a, 2008) are exceptions here.
4 For example, US cultural industries seek strong intellectual property protections and increased
access to European markets, while European producers in these sectors seek exemptions to
protect national culture. An interesting case we note below is the US financial sector, which
seeks regulatory harmonization not only to increase its presence in Europe but, perhaps more
importantly, to secure reduced domestic regulation.
5 Consistent with Lovely and Nelson (2000, 2002), Trefler (2004) finds that rationalization
effects dominate in the long-run, but that short-term adjustment induced by rationalization
involve non-trivial costs in the short-run.
7

sizable role of IIT in US-EU trade may similarly reduce adjustment cost-driven
distributive politics. Similarly, the opportunity to rationalize nationally
organized production on an international basis in sectors like motor vehicles,
steel, and chemicals should produce support for integration where opposition is
predicted in standard models. Consistent with this observation, the European
motor vehicle industry is strongly behind the T-TIP (they have been primary
drivers of political support, so to speak) while they were adamantly opposed to
the EU-Korea agreement and are opposed to an EU-Japan agreement as well. In
the first case, the most of the same firms operate on both sides of the Atlantic
and see opportunity for rationalization, while in the second the situation is closer
to the classic one of opposing firms.6
Distributive politics encourage us to treat opposition to liberalization as cynical
special pleading. However, especially when we turn from straightforwardly
protectionist barriers to trade to harmonization of regulations that are deeply
rooted in domestic understandings of identity, the good life, national safety, et
cetera, this inference becomes increasingly strained, even as self-interested
groups re-purpose such arguments to their own advantage. Thus, while purely
trade policy-related negotiations have become increasingly fraught as a result of
domestic political opposition (witness the lengthening periods to resolution of
multilateral trade agreements and the difficulty of American presidents in
securing trade promotion authority), as soon as we consider issues like
regulatory harmonization with some kind of non-trivial dispute resolution
process, concerns about surrender of sovereignty are added to standard
distributional conflicts. It is tempting to treat all such resistance as thinly veiled
rent seeking, but this is not really a useful way to understand the underlying
politics.7 Consider three cases of relevance to T-TIP: regulation of cultural
6 See for example Ramsey (2012) and Clark (2014). Lobbying is actually more complex, as Asian
manufacturers also produce in the EU, and both Toyota and Hyundai are members of the
European automakers association (ACEA).
7 This is not to say that such rent seeking is not an essential part of the politics of trade policy. It
certainly is. The point is to recognize that when opponents of liberalization refer to sovereignty
concerns, it is precisely because they tap into powerful notions of community norms that they
are effective. Treating them as simply bad faith is neither good politics, nor good analysis. The
inherent difficulty of incorporating such concerns in systematic analysis makes it all the more
8

goods; food safety regulation; and financial regulation. In all of these cases, there
are fundamental differences between parties engaged in the T-TIP negotiations.
Culture is inherently difficult to identify, but it goes to the heart of national
identity. US firms currently dominate the global cultural marketplace. It is easy
to see arguments for globalization as thinly veiled special pleading for US
television and filmmakers, music and print publishers, et cetera. It is just as easy
to see arguments against globalization as thinly veiled special pleading for
national (read “non US”) producers of the same goods. However, “culture wars”
in the US make clear just how strong are claims about the link between culture
and identity (Huntington, 2005). Especially in moments of economic
uncertainty, “culture” and identity become strong instruments indeed in the
political arena. The politics of culture will always be difficult and unpredictable
precisely because they are not anchored in material interests but elicit strong
responses at the ballot box.
Food safety regulation does not turn on quite such strongly intangible concerns,
but still produces very different responses. Food safety is, of course, a shared
value between citizens and governments of both the EU and the US, and yet the
approaches are fundamentally different. The problem is that many technologies
have uncertain future effects and, if the effects are at least plausibly sufficiently
large, it is necessary to weigh the gains from admitting such goods into the food
system against (possibly low probability) costs. US law emphasizes immediate
scientific process. If chlorine washed chicken and genetically modified
organisms cannot be shown to be dangerous with a high degree of certainty,
there is a presumption that they should be permitted to enter the market. The
European approach emphasizes instead the precautionary principle—i.e. to the
extent that we might reasonably suppose that they constitute risks to the food
system, proponents of sales of chlorine washed chicken or GMOs must prove that
they are safe with a high degree of certainty. These are both reasonable, but
debatable, principles for evaluating uncertain prospects (Gollier et al., 2000,
important that we recognize them where they may provide cause for us to be careful in our
policy recommendations.
9

Sunstein, 2005). The statement that “both countries agree on the goal of food
safety” only goes so far in resolving a fundamental legal difference about how to
evaluate policies in pursuit of that goal. In addition, of course, parties facing
redistributive effects from any harmonization can use legitimate differences
between weighting of type-1 and type-2 error as tools in rent seeking.
Finally, it is widely understood, especially in the aftermath of the 2007-2008
global economic crisis and follow on currency and debt crises that optimal
regulation of the financial sector involves a trade-off of the gains from efficiency
against the (potentially catastrophic, if low probability) losses from financial
crisis. The appropriate policy is affected not only by aggregate attitudes toward
risk, but also by uncertainty about both sources of and appropriate responses to
instability. Of particular relevance to T-TIP, the US has recently become more
aggressive in response to financial risk. This leads to concerns about both what
the appropriate policy is and active use of negotiations (especially by US
financial institutions) to undermine domestic regulation (Johnson and Schott,
2013).
In all three of these cases, as well as many others (some of which are discussed
elsewhere in this paper), these considerations make welfare evaluation difficult.
It is generally the case that, in all three cases, harmonization that results in
increased trade has a first-order welfare improving effect for all the usual
reasons. Nonetheless, because these policies involve substantial uncertainties
and externalities, those effects cannot be the whole story, especially from an
expected welfare point of view. At the same time, precisely because of
uncertainties about both technical details and true preferences, it is not at all
clear how to incorporate such considerations in our analysis. We follow the
keyless drunk in being systematic about those things that permit systematic
evaluation and we remind the reader that this is only part of the story.8 We
console ourselves that both the EU and the US possess robust democratic
8 For more on this, see (Freedman, 2010), who notes “It is often extremely difficult or even
impossible to cleanly measure what is really important, so scientists instead cleanly measure
what they can, hoping it turns out to be relevant.”
10

political systems whose purpose, among other things is to make determinations
about difficult social trade-offs.
3. Quantifying scope for trade cost reductions in T-TIP
We turn next to quantifying possible trade cost reductions under T-TIP. For
tariffs this is relatively straightforward. For NTBs, on the other hand, it is less so.
Therefore, we start with the easier task of describing tariffs. We then move on to
estimates of trade cost reductions for goods in past RTAs, and estimates specific
to the EU-US context. We save the most speculative for last – trade cost
reductions for services.
a. Tariffs
Though both US and EU average tariffs are similar, there is heterogeneity when
we break down tariff protection by sector. From Figure 3-1, the most striking
cases are motor vehicles and processed foods. The EU tariffs on these products
are substantially higher than corresponding US tariffs, and indeed far higher
than the trade-weighted average MFN tariff for goods overall. For motor
vehicles9 the EU applies an average tariff (7.9 per cent) that is over seven times
higher than the US. For processed food products, EU average tariffs (15.8 per
cent) are more than three times higher than US average tariffs. Though primary
agriculture appears relatively open, this is misleading. Protection in this sector
takes the form of a wife variety of NTBs, as will be see in the next subsection.
b. NTB liberalization in FTAs
We now turn to the trickier question of possible trade cost reductions linked to
NTBs. As noted above, such cost savings may follow from cross-recognition of
standards (a process where industry plays a central role) to acceptance of
9 Motor vehicles sector in this case includes also parts and components.
11

regulations (a process where regulators need to find common ground and
essentially trust the approach taken by comparable agencies on the opposite side
of the pond) to even joint regulation and development of joint standards. None
of this can be considered as easy. While examples such as “run drug trials once
and not twice” might seem obvious places to start, as noted in Section 2,
differences in social/political approach to risk and consumer protection render
even the obvious into something more complex and murky. 10
Figure 3-1 Applied (MFN) tariffs on trans-Atlantic trade
Source: WTO integrated database and the World Bank/UNCTAD WITS database.
Values reported are for 2011 and are trade-weighted.
One place to look, in terms of estimating possible reductions in trade costs, is the
impact we observe from past trade agreements. The EU itself, for example, has
been engaged in a decades long exercise not unlike the goals stated for the T-TIP.
We have also seen other trade agreements, ranging from shallow tariff-only FTAs
to relatively deep and comprehensive agreements, like the NAFTA. These may
10 We invite the reader to look through firm survey responses to regulation in the ECORYS (2009)
annex material, “Annex VI Business survey results”, which provides examples on an industry
basis of sources of cost differences when the same firms operate in multiple regulatory regimes.
12

provide some guidance on the magnitude of trade cost reductions that we might
expect, if T-TIP ends of looking like the deeper end of existing agreements.
In formal terms, we have implemented a gravity model of trade, estimated in a
cross-section of data for the year 2010 for goods at the level of aggregation used
for our computational model, and comparable to earlier ECORYS (2009)
aggregates.11 This means we specify bilateral trade flows in levels as an
exponential function of a log-linear index that is composed of three classes of
determinants: exporter-specific factors (measuring supply potential of exporting
countries), importer-specific factors (measuring demand potential of importing
countries), and bilateral factors (measuring trade impediments in a broad
sense). We specify exporter-specific and importer-specific factors as country
fixed effects and parameterize bilateral factors in the log-linear index as a
function of observable country-pair-specific variables. Thereby, we ensure that
the parameters on the later exhibit a structural interpretation that permits using
them in a subsequent comparative static analysis of a model that is calibrated to
data on trade and production at the same level of aggregation, where the trade
equations in the model are consistent with those in the gravity model itself.
A more technical discussion of the econometrics is provided in the annex.
For explanatory variables we include log bilateral distance, common border,
common language, and former colonial ties. We also include a measure of
political distance based on measures from the political science literature
(polity).12 We have also included the bilateral tariff margin granted in free trade
agreements (measured as the difference between the most-favoured nation rate,
which is subsumed under the importer-specific fixed effect, and the rate used in
11 A mapping from these sectors for NACE is provided in the annex. We have used 2010 rather
than 2011 because bilateral trade and tariff data, while available for the US and EU, were not
available yet for a broad enough set of countries, and we made the decision to go with 2010 to
gain dimensionality in the data used for the regression-based analysis.
12 Shipping distances are based on actual shipping routes (Francois and Rojas-Romagosa, 2014),
data on FTA rankings are from Dür et al. (2014), other geopolitical distance measures are from
the CEPII database (Mayer and Zignago, 2011), and polity comes from the Quality of Governance
(QoG) expert survey dataset (Teorell et al., 2011). The political economy variables include
pairwise measures of similarity, reflecting evidence that homophily is important in explaining
direct economic and political linkages (De Benedictis and Tajoli, 2011).
13

a respective trade agreement. (This actually represents the negative of the
preference margin.) Most important, in the present context, is that we have a
measure of the depth of various FTAs from Dür, Elsig and Milewicz (2014). The
depth-of-trade agreement variable takes on integer values ranging between
unity for shallow agreements and seven for deep agreements. The EU is not
technically an FTA, and we represent this with an additional dummy variable.
This indicator variable for intra-European-Union relationships differentiates
between the legal and institutional harmonization associated with EU
membership, which clearly goes beyond the liberalization of policies in other
agreements. 13
Table 3-1 summarizes the relevant trade-cost-function parameters of the second-
stage regression. (The parameters of the first-stage ordered-probit model are
summarized in the Appendix.) Across all regressions presented in the table, the
explanatory power – measured by the correlation coefficient between the model
and the data, dubbed as pseudo-R2 – is quite high. The results suggest that
overall as well as at sector-level, goods trade (in most sectors) rises (trade costs
decline) with a larger preference margin granted in trade agreements, with a
greater depth of an agreement, and with EU membership. The parameter on the
(negative) tariff margin reflects what is referred to as the elasticity of trade with
respect to tariffs.14 With reference to the new trade literature on monopolistic
competition and economies of scale, we
13 We treat the trade policy variables as jointly endogenous and pursue a control-function
approach to reduce the parameter bias flowing from that endogeneity. In essence we have
expanded on the methodology of Egger et al. (2011) to encompass different types of trade
agreements. This approach is discussed in detail in the Appendix. From a general perspective,
such an approach relies on some instrumental variables which help splitting the variation in an
endogenous variable – e.g., the integer-valued depth-of-agreement measure – into two
components: one that contains exogenous variation only and one that contains also endogenous
variation. In the present analysis, we assume joint normality of the endogenous variables and we
base the control function on generalized Mills’ ratios that are obtained from an ordered probit
model of depth-of-trade agreements. Since intra-EU relationships are associated with a depth
measure of seven, and tariff margins granted in agreements are correlated with the depth of
agreements, a flexible function of depth-integer-specific Mills’ ratios is capable of controlling for
the endogeneity of all trade policy measured included in the analysis.
14 This is often estimated at being between -3.5 and -7 for aggregate trade flows and varies
largely across sectors. See for example Broda and Weinstein (2006).
14

Table 3-1 PPML-based gravity estimates for goods
All Goods
Primary
agriculture
Primary
energy
Processed
foods
tariff -6.564 *** -1.960 *** -26.395 *** -2.914 ***
distance -0.529 *** -0.629 *** -0.896 *** -0.596 ***
common colony 0.439 *** 0.542 *** -0.079 0.477 *
common language 0.203 ** 0.239 ** 0.646 ** 0.370 ***
common border 0.508 *** 0.630 *** 0.597 ** 0.664 ***
polity -143.627 *** -30.255 *** -52.614 50.248
former colony 0.229 ** 0.228 ** 0.621 ** 0.406 ***
FTA depth 0.055 ** 0.164 ** 0.164 ** 0.082 ***
EUN 0.451 *** 1.087 *** 1.574 *** 0.681 ***
observations 11,145 11,053 9,413 11,109
pseudo R2 0.8828 0.8306 0.6918 0.8806
Beverages
and
tobacco
Chemicals
and
pharmaceuticals
Petro-
chemicals
Metals,
fabricated
metals
tariff -4.013 *** -3.188 ** -9.032 *** -5.304 ***
distance -0.603 *** -0.627 *** -0.755 *** -0.728 ***
common colony 1.255 *** 0.031 -0.251 0.223
common language 0.462 *** 0.151 * 0.213 0.036
common border 0.509 *** 0.370 *** 0.494 *** 0.587 ***
polity 167.547 * 45.513 * 46.158 -52.582 *
former colony 0.794 *** 0.378 *** 0.014 0.231 **
FTA depth 0.180 *** 0.021 0.192 *** 0.007
EUN 0.462 § 0.160 -0.118 0.778 ***
observations 11,087 11,123 10,854 11,065
pseudo R2 0.8219 0.9517 0.643 0.757
Motor
vehicles
Electronic
equipment
Other
machinery
Other
manufacturing
tariff -12.166 *** -22.869 *** -13.307 *** -7.653 ***
distance -0.312 *** -0.364 *** -0.473 *** -0.526 ***
common colony 0.657 * 0.499 ** 0.460 ** 0.416 ***
common language 0.151 0.130 0.288 ** 0.196 **
common border 0.467 *** 0.357 ** 0.353 *** 0.471 ***
polity 41.944 *** -241.980 *** -168.209 *** -115.083 ***
former colony -0.289 ** 0.128 0.331 *** 0.241 **
FTA depth 0.151 *** 0.028 0.057 *** 0.050 **
EUN 0.884 *** 1.141 *** 0.116 0.386 ***
observations 11,098 11,094 11,115 10,292
pseudo R2 0.8982 0.9372 0.9151 0.899
15

note: Cross section regressions based on 2010 data from COMTRADE, WITS, DESTA, CEPII as
discussed in text. Regressions are PPML based and include source and destination fixed effects and
correction for PTA endogeneity.
would refer to sectors with a larger (smaller) negative value of that elasticity as
more (less) competitive. Accordingly, we would say that the results suggest that
the competitive pressure is particularly high in primary energy production,
electronic equipment, other machinery, and motor vehicles. On the contrary, it is
particularly low in primary agriculture, chemicals and pharmaceuticals, and food
and beverages.
A greater depth of trade agreements particularly benefits (directly, recall that the
presented parameters measure only direct effects) all sectors except chemicals
and pharmaceuticals, metals, and electronics. The coefficient estimates are to be
interpreted as direct semi-elasticities. Hence, for all goods, a parameter of 0.18
means that bilateral goods trade will increase by 100x(e0.055(0.18)-1)≈5.7
percent per degree (between unity and seven) of greater depth of agreement.
Since prices and incomes will adjust in general equilibrium, the “treatment
effect” of greater agreement depth will vary across country-pairs, accruing to
differences in endowments, technology levels, and trade costs.
EU membership, with all its provisions that are directly and indirectly related to
goods trade, exhibits a direct semi-elasticity of 0.451, or 100x(e0.451-1)≈56.99
percent. Notice that this is bigger than the effect of switching from no agreement
at all to a deep agreement of grade seven for non-EU countries. The direct gains
from EU integration are particularly large for primary energy, primary
agriculture, motor vehicles, and metals.
16

Table 3-2 Trade cost reduction estimates, AVEs for goods
A B C D E
intra-EU
AVE savings
deep RTA
AVE savings
ECORYS
(2009)
EU vs US
ECORYS
(2009)
US vs EU
Share of
bilateral
trade
GOODS 7.1 6.0 na na 70.6
Primary agriculture 74.1 79.8 na na 0.9
Primary energy 6.1 36.9 na na 0.6
Processed foods 26.3 21.8 25.4 25.4 1.4
Beverages and tobacco 12.2 36.9 25.4 25.4 1.6
Petrochemicals 0.0 16.0 na na 3.3
Chemicals, Pharmaceuticals 0.0 0.0 10.2 11.4 19.3
Metals, fabricated metals 15.8 0.0 5.3 9.0 5.1
Motor vehicles 7.5 9.1 14.0 14.2 5.9
Electrical machinery 5.1 0.0 6.0 6.8 3.1
Other machinery 0.0 3.0 0.0 0.0 23.2
Other manufactures 5.2 4.6 na na 6.2
Table 3-2 summarizes the ad-valorem equivalents (AVEs) of non-tariff trade-cost
factors in columns A and B. These are based on the regression coefficients in
Table 3-1. To see what these AVEs are, let the generic ad-valorem tariff
parameter be a and the coefficient on any non-tariff measure be b. Moreover,
denote the average value of any generic non-tariff trade cost by c. Then, the AVE
≡ 100x(e-bc/a-1) measures the necessary percentage point adjustment of tariffs
which is equivalent to eliminating the respective non-tariff cost. In the table, the
trade cost indicator c is either EU Membership of the depth of a particular
agreement. In essence the term bc is the trade volume effect, and dividing by the
tariff coefficient gives the comparable tariff that would yield the same volume
effect. In Table 3-2 we have computed two tariff-equivalents, one for cost-savings
from EU membership (i.e., the deepest trade agreement in our sample) and one
for estimated cost reductions following from the deepest observed FTAs (so
indexed as 7). The results suggest that the tariff-equivalent effects of intra-EU
preferences are largest for primary agriculture and processed foods, followed by
metals and fabricated metals. We also observe differences in, both positive and
negative, when comparing the EU estimates with deep FTAs. There are good
17

reasons for this. Where we have countries with deeper underlying NTBs than in
the EU context, there will be greater impact if they are removed. Critically, if
barriers are not removed in an FTA, then we will not observe cost reductions,
even if there are actually substantial underlying barrier.
Columns C and D in Table 3-2 provide another basis for analysis. These are from
the ECORYS (2009) study of transatlantic NTBs. Those estimates are also gravity
based, from a similar estimation framework to that reported in Table 3-1. The
critical difference is that the estimates in columns C and D are based on firm
survey pairwise rankings of market access conditions across markets (scored 0-
100). On that basis, relative access conditions were found to vary systematically
for intra-EU vs extra-EU trade (meaning EU trade with third countries).
Converting those volume effects into trade cost equivalents, and applying
additional information from the firm responses (the share of total NTB related
costs that could realistically be removed by a mix of cross recognition and
regulatory convergence) yields the results summarized in columns C and D.
Essentially, columns A and B are estimates of what has been accomplished in
existing trade agreements. Columns C and D, following a similar methodology,
focus instead on possible cost savings in the trans-Atlantic context. For most
sectors where we have available estimates in the second set of columns, the
estimates are generally quite similar, especially is we focus on the intra-EU
estimates as a benchmark. Interestingly, though tariffs on primary agriculture
were shown above to be relatively low, from the estimates in Table 3-2 the
impact of NTBs on this set of good is actually quite dramatic. In addition, there is
clear evidence of substantial cost savings in the context of both deep RTAs and
the EU itself.
We should comment on chemicals. From our own estimates, existing
agreements have not yielded trade cost savings in this sector. Yet, from the
business surveys and associated gravity analysis for this sector (columns C and
D) econometric analysis identified potential cost savings that work out to
roughly 10% of the value of goods traded. In the European context, a new set of
EU standards, known by the acronym REACH (Registration, Evaluation,
18

Authorisation and Restriction of Chemicals) was not agreed until 2007. It is
scheduled to be phased in over a period lasting until at least 2018. In other
words, even within the EU, the process of regulatory integration has a long way
to go, and we should not be surprised to see no effects in columns A and B.
Hence, though we know that motor vehicle producers have been strongly
proactive in pursuing cost reductions within RTAs, for chemicals we interpret
columns A and B as indicative of what has happened within RTAs and the EU
(not so much so far) and what may potentially happen (substantial cost savings).
c. Services in the context of RTAs
Finally, we now turn to services. This is a difficult area both in RTAs and in the
WTO, where services are covered by the General Agreement on Trade in
Services, aka the GATS. (see Francois and Hoekman, 2010 for a general
discussion of measurement problems). Fortunately, new sets of data have been
released based on relatively detailed analysis of regulatory regimes in services,
combined with assessments of how GATS and RTA commitments in services
compare to policies actually in place. We will work in this section with estimates
of trade restrictions in services from the World Bank (Borchert et al., 2014),
AVEs for trade barriers in services based on the World Bank data (Jafari, 2014),
and assessments of GATS bindings and how these compare to RTA services
commitments from the WTO (Roy, 2011 database updated 2013).
Table 3-3 below provides summary information for services for the EU and the US.
The first two columns provide estimated AVEs of market access restrictions in
services on the basis of the World Bank’s STRI database (Jafari, 2014) and are
comparable to estimates from other sources. They represent actual levels of
market access. Columns C and D provide a different perspective. These provide
scores from 0 to 100, where 0 means no binding commitments have been made
and 100 means full commitments have been made to bind policies linked to
market access for particular sectors. A similar message is provided by
19

Table 3-3 AVEs and market access commitments in services
A B C D E
AVEs of
current policies GATS, and best RTA Share of
bilateral
tradeEU US EU US
SERVICES 12.79 12.94 55.3, 64.4 55.4, 55.4 29.4
Construction na na 70.8, 83.3 83.3, 83.3 0.4
Air transport 25.00 11.00 66.3, 72.5 5.0, 28.8 3.1
Maritime 1.71 13.00 47.6, 63.1 0.0, 44 0.1
Other Transport 29.73 0.00 57.1, 71.4 42.9, 64.3 3.1
Distribution 1.40 0.00 71.9, 87.5 100, 100 1.0
Communications 1.10 3.50 75.0, 78.1 78.3, 78.3 1.1
Banking 1.45 17.00 42.7, 42.7 29.2, 33.3 5.0
Insurance 6.55 17.00 57.5, 57.5 40.0, 50.0 2.7
Professional and business 35.43 42.00 58.8, 62.5 57.5, 62.5 8.1
Personal, recreational na na 47.6, 50.9 91.5, 91.5 1.3
Public services na na 32.5, 36.7 19.2, 31.7 3.5
Source: WTO and World Bank. See text.
Borchert et al. (2011), who note that in general GATS commitments provide little
in terms of bindings relative to actual policy. From columns C and D, many
sectors are relatively unbound both in the GATS, but also in terms of the deepest
commitments made by either the EU or the US within trade agreements. There
are exceptions, such as the distribution sector, construction, and
communications. Yet from columns A and B these sectors are relatively open
anyway. Where we see the highest protection, in professional and business
services, both the EU and US are highly protective, and they are reticent to make
actual commitments in these sectors. Yet, from column E, business and
professional services are the single most important set of services, in terms of
trans-Atlantic trade. As such, while we see little evidence of actual liberalization
under with the GATS or RTAs, there is great potential given the size of barriers
(the AVEs in columns A and B) and the trade share (column E). On the US side,
other standouts are banking and insurance (high barriers, little evidence of
actual binding commitments) and maritime services (same story).
How do we interpret the data in Table 3-3? Based on past experience, neither the
US nor the EU has shown a willingness to make binding commitments to open
20

service sectors where protection actually matters. This does not mean we
cannot speculate on a situation where we depart from past behavior. However,
this means we will be embarking on numerical speculation, even more so than
usual, when we include services in out numerical modeling.
4. Numerical modelling of T-TIP
We turn next to a numerical analysis of the impact of T-TIP based NTB cost
reductions. This involves a multi-region CGE model of the global economy
benchmarked to 2011. The structural features of the model are common to
those used for the ECORYS (2009) and CEPR (2013) T-TIP assessments, as well
as the EU-Canada (2009) joint assessment on the EU-Canada FTA. The model
features a mix of monopolistic competition for industrial sectors and business
services and Armington-based trade (i.e. CES demand with competitive markets)
for other sectors. It also includes linkages between investment and the installed
capital stock.15
In what follows, we first provide a broad overview of the model. We then
develop a set of experiments based on our discussion in Section 3 of NTB-based
cost reductions in FTAs. This is followed by discussion of the results of the
computational experiments. We emphasize both EU-US effect and third country
effects. With respect to third countries we also examine the possible importance
of what are called “regulatory spillovers.” Basically, with a deep agreement on
NTBs, it has been argued that third countries might also benefit to a limited
extent, in terms of some improvement in market access. The logic is that, with
deep regulatory reform, at least some of the changes are likely to affect all
players, and not just the EU and US firms, as redrafted regulations might not (but
15 The full set of CGE model files is available as an on-line annex and data/software archive. The
model itself is implemented in GEMPACK. Monopolistic competition is modelled as explained in
Francois et al. (2013), while investment linkages are based on “comparative steady-state”
analysis, where we take the 2011 benchmark as a representative year on a timeline and solve for
changes in that year along the timeline following policy experiments. See Francois et al. (1997)
as well as Francois et al. (2005). The model runs on top of the GTAP database, version 9 (Hertel,
2013), which itself is benchmarked to 2011.
21

could be) be formulated to explicitly be applied differently to different countries.
This is an obvious difference from preferential tariff reduction. In addition, as
with investment treaties, firms may be able to relocate operational headquarters
to qualify for better regulatory treatment. For example, where the US recognizes
EU standards, firms in other countries might then find it easier to then meet US
standards themselves. For example, Switzerland is already
streamlining/harmonizing its technical regulations with the EU’s through a
mutual recognition agreement. Therefore Switzerland might be expected to
actually benefit from realized MFN spillovers. For other countries (especially low
income ones) this seems less plausible to us.
a. Overview of the model
Our computational model belongs to a class of models known as computable
general equilibrium (CGE) models.16 In the model there is a single representative
or composite household in each region. Household income is allocated to
government, personal consumption, and savings. In each region the composite
household owns endowments of the factors of production and receives income by
selling the services of these factors to firms. It also receives income from tariff
revenue and rents accruing from import/export quota licenses. Part of the income
is distributed as subsidy payments to some sectors, primarily in agriculture.
Taxes are included at several levels in the model. Production taxes are placed on
intermediate or primary inputs, or on output. Tariffs are levied at the border.
Additional internal taxes are placed on domestic or imported intermediate inputs,
and may be applied at differential rates that discriminate against imports. Where
relevant, taxes are also placed on exports, and on primary factor income. Finally,
16 There are strong similarities to the recent class of structurally estimated general equilibrium
models. Our trade equations are parameterized econometrics reflecting the first order
equilibrium conditions for the computational model. However, we do not assume that all
observed deviations in actual trade from predicted trade (i.e. not explained by pairwise distance
or by size of markets) results from unobserved policy-based NTBs. As such, calibrating of fitted
CES weights reflects a combination of variety effects, market size effects, and also underlying
NTBs and taste differences not captured in the pairwise explanatory variables included in the
econometric analysis. See Francois, Manchin and Martin (2013), (Hertel, 1997), Hertel (2013),
De Melo and Tarr (1992), and Francois and Shiells (1994) for more discussion on these points.
22

where relevant (as indicated by social accounting data) taxes are placed on final
consumption, and can be applied differentially to consumption of domestic and
imported goods.
On the production side, in all sectors, firms employ domestic production factors
(capital, labour and land) and intermediate inputs from domestic and foreign
sources to produce outputs in the most cost-efficient way that technology allows.
In some sectors, perfect competition is assumed, with products from different
regions modelled as imperfect substitutes based on CES preferences (known as
the Armington assumption).
Manufacturing and business services are modelled with monopolistic
competition. Monopolistic competition involves scale economies that are internal
to each firm, depending on its own production level. An important property of the
monopolistic competition model is that increased specialisation at intermediate
stages of production yields returns due to specialisation, where the sector as a
whole becomes more productive the broader the range of specialised inputs. In
models of this type, part of the impact of policy changes in final consumption
follows from changes in available choices (the variety of goods they can choose
from). Similarly firms are affected by changes in available choices (varieties) of
intermediate inputs. Changes in available varieties also involve changes in
available foreign varieties, in addition to domestic one. As a result, changes in
consumer and firm input choices will “spill-over” between countries as they trade
with each other.
Tariffs and tariff revenues are explicit in the standard GTAP database, and
therefore can be directly incorporated into the model used here directly from the
standard database. However, NTBs affecting goods and services trade, as well as
cost savings linked to trade facilitation are not explicit in the database and we
need to take steps to capture these effects. Where NTBs leads to higher costs, we
follow the standard approach to modelling iceberg or dead-weight trade costs in
23

the GTAP framework.17 In formal terms, this means we model changes in the
efficiency of production for sale in specific markets. In this sense, we can capture
the impact that NTBs can have in raising costs when serving foreign markets.
Where NTBs instead involve higher prices because of rents, we model this as
additional mark-ups (higher prices) accruing to firms. Reduction of NTBs then
involves a surrendering of the associated rents. From firm and regulator surveys
(see ECORYS 2009) a good rule of thumb is a 50:50 split of the AVEs for NTBs into
costs and rents.
b. Specifying the experiment
With computational model in hand, the next step is specifying our policy
experiments. We base these on values in Figure 3-1, Table 3-2, and Table 3-3. For
goods, we assume full tariff elimination. In addition, we generally use our AVE
estimates of intra-EU trade cost reductions for the EU, and deep FTA trade cost
reductions for the US. There are some exceptions to this rule however. Based on
our discussion of chemicals and REACH in Section 3, we use the ECORYS
estimates of trade cost savings for the chemicals sector, reflecting potential for
trade cost reductions hoped for by industry but not seen in existing agreements.
For beverages and tobacco, we use the lower EU estimate for application to the
US, both because the ECORYS estimates lumped this sector with processed foods
(where protection is systematically higher) and because protection in this sector
tends to be higher in lower and middle income countries (so that the deep FTA
estimates most likely overstate the US situation). Similar to chemicals, for motor
vehicles we again take the ECORYS estimates. These are only somewhat higher
than the EU and deep FTA estimates, but again reflect an objective to go beyond
existing agreements. Finally, for metals, we use the ECORYS estimates for the US.
All of there decisions, of course, reflect informed judgement calls.
The situation is trickier when it comes to services. At more cynical moments
when working on this paper, we have considered it plausible to argue that an
17 The original Francois (1999, 2001) approach has grown from a specialized extension in early
applications to a now standard feature of the GTAP model with its incorporation by Hertel et al.
(2001).
24

agreement will be signed that includes services but where, as in past agreements,
nothing actually happens in terms of market access conditions for services. This
is a view consistent with the pattern of values reported in Table 3-3. However,
when in a more positive mood we are more inclined to give negotiators the
benefit of the doubt. There is a stated objective of improving market access in
services. Yet in some sectors (distribution in the US) we already have essentially
free trade, and in others we are close (communications services). Based on
statements of negotiators, worries about the manoeuvring of financial
institutions to undercut regulation through T-TIP, and the deep commitments
already made under Basel III, we do not expect real liberalization in finance
(banking and insurance) under T-TIP even with an optimistic assessment. For
the other sectors, we are more agnostic. Therefore, we have opted to include
50% reduction of AVEs from Table 3-3 for the remaining sectors (excluding
finance), reflecting the rough rule of thumb that half of these AVEs might be
eliminated with a real, deep set of commitments on services (meaning half of
these costs are actionable). In what follows we will separate services from
goods, so that reflecting the occasionally more cynical mood, we can also focus
on a sub-experiment that excludes services liberalization. Our experiments (the
tariffs and tariff equivalents for NTBs to be eliminated) are summarized in Table
4-1.
25

Table 4-1 Trade cost reductions in T-TIP scenario
AVE %
cost reductions tariffs
EU NTBs US NTBs EU tariffs US tariffs
GOODS 7.9 7.4 2.1 1.3
Primary agriculture 74.1 79.8 3.3 2.2
Primary energy 6.1 6.1 0.0 0.1
Processed foods 26.3 25.4 15.8 5.0
Beverages and tobacco 12.2 12.2 5.9 0.8
Petrochemicals 0.0 0.0 1.8 1.6
Chemicals, Pharmaceuticals 10.2 11.4 2.1 1.3
Metals, fabricated metals 15.8 9.0 1.8 1.2
Motor vehicles 14.0 14.2 7.9 1.1
Electrical machinery 6.0 6.8 0.6 0.3
Other machinery 0.0 0.0 1.2 0.7
Other manufactures 5.2 4.6 1.7 2.9
SERVICES 9.9 6.7
Construction 4.6 2.5
Air transport 12.5 5.5
Maritime 0.9 6.5
Other Transport 14.9 0.0
Distribution 0.7 0.0
Communications 0.6 1.8
Banking 0.0 0.0
Insurance 0.0 0.0
Professional and business 17.7 21.0
Personal, recreational 4.4 2.5
Public services * *
Note: For construction we have started from values reported by ECORYS as the recent World Bank
AVE estimates for services do not cover construction. Goods and Services aggregates are all trade
weighted based on bilateral trade flows.
c. Estimated effects from T-TIP implementation
Table 4-2 summarizes our estimates of national income changes, measured as
changes in real household consumption (meaning nominal household incomes
by region are deflated by changes in prices), under our core T-TIP scenario. In
the table, we provide a breakdown along the elements of the scenario (tariffs,
goods NTBs, and services NTBs) and also across regions. For both the US and the
EU, the primary action comes from goods liberalization rather than services.
This is seen by comparison of columns D and E. Indeed, for goods, NTBs
26

dominate by far the benefits of tariff reductions. In our goods only scenario
(column D), the EU gains 0.91 percent in terms of annual real consumption, and
the US gains roughly 0.51 percent. This is an increase in annual levels of
consumption where we have essentially assumed the agreement had already
been in place in 2011. Column F provides a different view. Here we use a
discount function V(F), where we assume a gradual phase in, so that 10% of the
change is realized in year one, 20% in year 2, etc and full realization of this
change is realized by year 10. We further assume we start from an economy
other wise like that in 2011, we use a discount rate of 3.5%, and we focus on 20
years of changed real income changes. On this basis, the ambitious agreement
yields a stream of income gains worth a lump sum or onetime payment of 12.0
percent of GDP for the EU, and 6.2 percent for the US. Strikingly, the
accumulated costs for third countries, especially for EFTA members, Turkey, and
the Asia-Pacific partners of the US (the TPP grouping) is comparable, in terms of
accumulated loss, to US gains. What we see therefore, from columns D, E, and F
is that a classic, discriminatory approach to T-TIP could be costly for third
countries.
Table 4-2 Real national income effects in core T-TIP scenario
Real income (household utility from private consumption), percent change
A B C D=A+B E=A+B+C F=V(E)
tariffs NTBs goods NTBs services
total
goods only
liberalization
total goods
and services
liberalization
discounted
lumpsum
equivalent
European Union 0.10 0.86 0.17 0.96 1.14 12.03
United States 0.10 0.41 0.08 0.51 0.59 6.21
EFTA -0.12 -0.50 -0.01 -0.62 -0.63 -6.66
Turkey -0.19 -0.34 -0.01 -0.52 -0.53 -5.61
Other Europe -0.01 -0.06 0.00 -0.06 -0.06 -0.67
Mediterranean -0.01 -0.05 0.00 -0.06 -0.06 -0.58
Japan -0.03 -0.12 0.00 -0.15 -0.15 -1.60
China -0.03 -0.05 0.00 -0.08 -0.08 -0.82
Other TPP countries -0.10 -0.45 0.00 -0.55 -0.55 -5.82
Other Asia -0.01 -0.07 -0.01 -0.08 -0.08 -0.90
Other Middle Income -0.01 -0.03 0.00 -0.04 -0.04 -0.45
Low Income 0.02 0.09 0.01 0.11 0.11 1.18
Source: CGE estimates. Note discounting V(E) function assumes 20 year horizon and 3.5% discount
rate, with phased 10 year implementation to reach full effects in column E.
27

As noted in the introduction to this section, there are expectations of possible
trade cost reductions for third countries. These are collectively referred to as
“regulatory convergence spillovers” or “NTB reduction spillovers.” To repeat the
logic we discussed earlier, if the US and the EU launch a process of regulatory
streamlining and mutual recognition, and if this process proves to be relatively
non-discriminatory, there may be ancillary benefits to third countries. In effect,
it may become easier to access to the combined EU-US market, in terms of
regulatory barriers, than it was for the two distinct markets. Apart from
informal discussion with industry and negotiators, where firms do seem to
believe such potential benefits are lurking in the shadows, we have little basis for
knowing exactly how large such spillovers might be. Even so, in Table 4-3 we
report estimated impacts of such spillovers. What we have done, starting from
the results reported in Table 4-2, is to further assume that 20% of the NTB cost
reductions realized by US firms accessing the EU, and EU firms accessing the US,
also accrue to third countries accessing those same markets.
Table 4-3 Real national income effects from spillovers
Real income (household utility from private consumption), percent change
F G H=E+F+G I=V(H)
Spillovers to
high income
Spillovers to
middle and low
income
total
inclusive of
spillovers
discounted,
lumpsum
equivalent
European Union 0.07 0.32 1.53 16.23
United States 0.13 0.16 0.88 9.29
EFTA 1.25 -0.09 0.53 5.62
Turkey 0.94 -0.01 0.40 4.19
Other Europe 0.46 -0.10 0.29 3.12
Mediterranean -0.09 0.41 0.27 2.85
Japan 0.26 -0.01 0.10 1.07
China -0.04 0.34 0.22 2.30
Other TPP countries 0.99 -0.04 0.40 4.26
Other Asia -0.06 0.24 0.10 1.04
Other Middle Income -0.02 0.11 0.05 0.50
Low Income -0.18 0.07 0.01 0.09
Source: CGE estimates. Note discounting V(H) function assumes 20 year horizon and 3.5% discount
rate, with phased 10 year implementation to reach full effects in column H.
28

Comparison of column F in Table 4-2 with column I in Table 4-3 illustrates a
relatively important point. The form that mutual recognition of standards and
regulatory cooperation might take under T-TIP is rather central to the whole
affair. With some NTB harmonization between the EU and US leading to an
effective reduction in costs for third countries, benefits might, potentially, then
be expected for third countries, especially upper and middle-income countries.
This is one possible negotiation path, and if followed also yields the highest gains
for the US and EU as well. However, it certainly is not the only path, and indeed a
more protectionist approach might be more responsive to lobbying interests.
Under such an alternative approach, if the solution for negotiated reduction of
differences in regulatory systems is to establish some sort of deliberately
discriminatory country of origin based mutual recognition mechanism for
conformity assessments under divergent national regulations, third country
exporters would then be worse off. The official narrative assumes that such
spillover benefits will be realized. The magnitudes involved suggest that
regardless of assumptions, it is in the interest of third countries to be rather
aggressive in ensuring that non-tariff aspects of T-TIP actually are not structured
to be deliberately exclusive and discriminatory.
29

5. Final caveats: adjustment costs matter
An issue of considerable significance that we are not able to address in this paper
is the transition between equilibria (i.e. the short-run adjustment to our trade
policy shock). Trade economists are well aware that, in standard competitive
models, the main source of long-run gain from trade is specialization and that
(loosely speaking) the only way to secure large gains from trade is for policy to
induce large adjustments in production structure (Ethier, 2009). This of course
implies that, in standard competitive models, policies changes associated with
large gains from trade will also be associated with potentially large transitional
costs (mostly in the form of unemployment, forgone wages, and mobility costs—
including such things as loss of asset value from housing). While there is not a
lot of research on this queston, the best efforts suggest that the costs are non-
trivial. For example, Jacobson, LaLonde and Sullivan (Jacobson et al., 1993a, b)
estimate that an average displaed worker loses $80,000 in lifetime earnings and
Kletzer (2001) estimates that the average displaced worker suffers a 13% pay
cut as a result of trade displacement.18 We have already noted that research on
intraindustry trade suggests that these costs may be mitigated when similar
countries (i.e. the US and the EU) liberalize due to the major role of,
presumptively less disruptive, intraindustry trade. Unfortunately, more recent
theoretical and empirical work on trade with heterogeneous firms qualifies this
last presumption, making this an issue of some concern when evaluating the
effects of a major exercise in liberalization like the T-TIP.
In the standard model (as well as in models of monopolistic competition), firms
are presumed to be identical. Recent empirical research suggests that this
assumption is dramatically falsified (Bernard et al., 2007, 2012). Starting with
Melitz (2003), a sizable body of theory and empirical research has developed
based on the insight that firms are heterogeneous and studying how that
heterogeneity interacts with international trade (Melitz and Redding, 2015,
Redding, 2011). In fact, this leads to an interesting form of complexity: on the
18 Davidson and Matusz (2004) is a convenient summary of results in this area, while Davidson
and Matusz (2010) collects the authors’ important work extending standard models to
incorporate unemployment.
30

one hand, heterogeneous firm models provide an additional source of gains from
trade as more efficient firms displace less efficient firms, thus raising
productivity (Melitz and Redding, 2013, Melitz and Trefler, 2012); on the other,
the firm-level adjustment means that there is explicit attention to short-run
adjustment on the firm margin that is associated with at least transitional
unemployment as (within sector) inefficient firms close and efficient firms
expand. A number of recent papers have analysed adjustment to a shock which
is quite relevant to the T-TIP case—the US-Canda free trade agreement (and its
extension via NAFTA). Starting especially with Trefler (2004) and applying firm-
level data, these papers have examined the effect of integration with the US on
Canada (e.g. Baggs, 2005, Baggs and Brander, 2006, Breinlich and Cuñat, 2010,
LaRochelle-Côté, 2007, Lileeva, 2008, Lileeva and Trefler, 2010). The main result
here is that, in the short run relatively inefficient firms exit, creating
unemployment; but in the long run productivity rises and unemployed workers
are absorbed. Note well that this is precisely in the context of models of the
Krugman sort (except with heterogeneous firms). That is, even though
rationalization may dominate intersectoral adjustment, the within sector, short-
run effects will still be negative and, potentially, substantially negative. From a
political perspective, the short-run negative effects may be every bit as
significant as the long-run efficiency effects. Countries with well-functioning
welfare states should find it easier to liberalize in the face of such shocks than
countries that lack such institutions.
31

APPENDIX – gravity estimates of NTB cost reductions
Empirical model outline
In this appendix, we describe the basic procedure to control for endogeneity in
selection into trade agreements. For the gravity estimates reported in Section 3
of the paper, we follow Santos Silva and Tenreyro (2006) and Egger, Larch, Staub
and Winkelmann (2011) in employing a generalized-linear exponential-family
model for estimating gravity models. One merit of such models is that, unlike
ordinary least squares on the log-transformed model, they obtain consistent
parameters in the presence of heteroskedasticity even if it is unknown whether
the disturbance term is log-additive or level-additive. Furthermore, in line with
Terza (1998, 2009), (Greene, 2002), Greene (2012), Terza et al. (2008), and
Egger, Larch, Staub and Winkelmann (2011), we apply a control-function
approach which, under a set of assumptions summarized below, is capable of
absorbing the endogeneity problem and obtaining consistent parameter
estimates, including the partial treatment effects of interest.
Formally, we employ imports of country j from country i, Xij, as the dependent
variable and specify it as an exponential function of a linear index of the form
(A1) 𝑋𝑋𝑖𝑖𝑖𝑖= exp (𝑑𝑑𝑖𝑖𝑖𝑖𝑎𝑎𝑑𝑑+ 𝑡𝑡𝑖𝑖𝑖𝑖𝑎𝑎𝑡𝑡+ 𝑒𝑒𝑖𝑖+ 𝑚𝑚𝑖𝑖 + 𝑐𝑐(𝑧𝑧𝑖𝑖𝑖𝑖))𝑢𝑢𝑖𝑖𝑖𝑖
where 𝑑𝑑𝑖𝑖𝑖𝑖is a PTA-depth measure (a scalar or a vector, depending on the
specification), 𝑡𝑡𝑖𝑖𝑖𝑖is a vector of observable (log) trade-cost measures (such as log
distance, ….), (𝑎𝑎𝑑𝑑
′ , 𝑎𝑎𝑡𝑡
′ )′ is a conformable parameter vector, {𝑒𝑒𝑖𝑖, 𝑚𝑚𝑖𝑖}re catch-all
measures of exporter- and importer-specific factors (estimated as parameters on
i-specific and j-specific binary indicator variables, respectively. Moreover,
(A2) 𝑐𝑐�𝑧𝑧𝑖𝑖𝑖𝑖�= ℎ𝑖𝑖𝑖𝑖𝑎𝑎ℎ = �ℎ1,𝑖𝑖𝑖𝑖, … , ℎ𝐷𝐷,𝑖𝑖𝑖𝑖�𝑎𝑎ℎ,
is a control function which is derived from the assumption of multivariate
normality of the disturbances between the processes of selecting into depth
=1,…,D and the stochastic term aboutδ 𝑋𝑋𝑖𝑖𝑖𝑖. The application here represents an
innovation on the existing literature, which generally focuses on binary selection
in the case of trade agreements.
The control function absorbs the potential endogeneity bias (i.e., the correlation
of 𝑑𝑑𝑖𝑖𝑖𝑖with the disturbances). After introducing a binary indicator variable
1[𝑑𝑑𝑖𝑖𝑖𝑖= 𝛿𝛿]which is one if the statement in square brackets is true and zero else,
the elements ℎ𝛿𝛿,𝑖𝑖𝑖𝑖for δ=1,…,D are defined as follows.
(A3) ℎ𝛿𝛿,𝑖𝑖𝑖𝑖= 𝜙𝜙(𝑧𝑧𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧)(1−1[𝑑𝑑𝑖𝑖𝑖𝑖=𝛿𝛿] (𝑧𝑧Ф𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧))
(𝑧𝑧Ф 𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧)
These are referred to as inverse Mills’ ratios (for 𝑑𝑑𝑖𝑖𝑖𝑖= 𝛿𝛿) in the literature (see,
e.g. Wooldridge, 2010). They depend on the density, 𝜙𝜙(𝑧𝑧𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧), and the
cumulative distribution function, (𝑧𝑧Ф 𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧), which, in a reduced form, depends
32

on common observable characteristics, 𝑧𝑧𝑖𝑖𝑖𝑖, and the depth-specific parameter
vector 𝑎𝑎𝛿𝛿,𝑧𝑧.
Notice that the assumption about multivariate normality is specific here, since
selection into states δ is mutually exclusive (a country-pair can only apply a
single level of depth of an agreement). This means that we can think of theδ
variance-covariance matrix for each country-pair ij where we order the data
such that the terms for the D latent variables generating ℎ𝛿𝛿,𝑖𝑖𝑖𝑖appear at the top
and the stochastic term for 𝑋𝑋𝑖𝑖𝑖𝑖appears at the bottom. Apart from diagonal
elements throughout, this matrix would then contain only non-zero elements in
the bottom row and the right column.
A somewhat different approach to the control function could be based on an
ordered probit model about 𝑑𝑑𝑖𝑖𝑖𝑖= 𝛿𝛿rather than individual probit models for
each state . This approach would be somewhat more parsimonious in terms ofδ
the number of parameters to be estimated. In contrast to the aforementioned
approach, this procedure would be based on -specific elementsδ ℎ𝛿𝛿,𝑖𝑖𝑖𝑖for δ=1,…,D
which are defined as
(A4) ℎ𝛿𝛿,𝑖𝑖𝑖𝑖= 𝜙𝜙�𝜇𝜇𝛿𝛿−1−𝑧𝑧𝑖𝑖𝑖𝑖𝑎𝑎𝑧𝑧�−𝜙𝜙�𝜇𝜇𝛿𝛿−𝑧𝑧𝑖𝑖𝑖𝑖𝑎𝑎𝑧𝑧�
Ф�𝜇𝜇𝛿𝛿−𝑧𝑧𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧�− (𝜇𝜇Ф 𝛿𝛿−1−𝑧𝑧𝑖𝑖𝑖𝑖𝑎𝑎𝛿𝛿,𝑧𝑧)
Notice that 𝜇𝜇𝛿𝛿−1and 𝜇𝜇𝛿𝛿are depth-specific, implicitly-determined threshold
values which determine whether country-pair ij is in regime 𝛿𝛿 − 1versus 𝛿𝛿.
Hence, in contrast to ℎ𝛿𝛿,𝑖𝑖𝑖𝑖estimated from individual probit models as in (A3)
above and say DK parameters (where K is the number of parameters per probit
equation), their counterparts in (A4) are estimated based on only D+K-1
parameters (where the K-1 are the parameters on {𝜇𝜇1, … , 𝜇𝜇𝐷𝐷} , excluding 𝜇𝜇0,
which is part of the D parameters in the base model).
Basic assumptions
The control-function approach outlined above rests on three basic assumptions.
First, that the disturbances of the latent variables determining selection into a
particular depth of trade agreements and the outcome equation (for 𝑋𝑋𝑖𝑖𝑖𝑖) are
multivariate normal, whereby the stochastic terms for each country-pair ij are
drawn independently from but identically to those of other pairs. In the present
case, they are bivariate normal for each and every level of depth, . Second, theδ
universe of instruments collected in 𝑧𝑧𝑖𝑖𝑖𝑖(which includes all determinants of the
outcome model except for the elements in ℎ𝑖𝑖𝑖𝑖and some additional identifying
regressors, see Cameron and Trivedi (2005)) should be independent of the
multivariate error terms (i.e., the instruments should be exogenous). Third and
finally, the variances of the latent processes determining selection-into-
agreement-depth are normalized to unity.
33

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