This article explains the concept of expenditure multiplier and its impact on an economy. It also discusses the relationship between GDP, NDP, fiscal policy, monetary policy, unemployment types, inflation, AD-AS model, cost curves, and profit maximization.
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Expenditure multiplier application In simple words, expenditure multiplier said to be in play when an investment fell by $100 billion, its impact on an economy not remain only limited $ 100 billion, in fact, its impact felt many times more than $ 100 billion that is what multiplier mean. It can be 2 times, 3 times or even 5 times, it depends on multiplier number. Investment or expenditure can be of many types, it can be consumption, investment, Government expenditure or net of exports and imports, its impact on an economy have more than proportional change in expenditure or investment.(Ceterisparibus)This is what multiplier mean for an economy. As per the Keynsean economics, higher the aggregate demand, higher will be economic activity. Aggregate expenditure circulates in an economy: that is popularly known as circular flow of expenditure/income in an economy. It works like this, households buy from firms, firms pay workers and suppliers, workers and suppliers buy goods from other firms, those firms pay their workers and suppliers, and so on so forth. In this way original expenditure converted to many time through the impact of multiplier, this is what expenditure multiplier mean. GDP (Gross Domestic Product): Monetary value of final (not intermediate) Goods and Services produced in an economy (domestic territory) in a financial year. GDP = C + I + G + (X – M) = Private consumption + gross consumption + government spending + (export-imports) NDP (Net Domestic Product): NDP = GDP - Depreciation or (wear and tear) Fiscal Policy and Monetary policy with diagram (ceteris paribusapplicable wherever it is required) Fiscal policy is implemented by government of that country: It is done by influencing investment, employment, output and income, (ceteris paribus)through following two ways: a)Increase/decrease in expenditure and
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Source: http://www.economicsdiscussion.net/keynesian-economics/policies/monetary-and- fiscal-policy-effects-and-changes-with-diagram/15779 When government increases the expenditure, we see that there is a shifts in the IS curve from IS0to IS1, i.e. toward right as shown in Fig. 10.1. And as a result, there is rise in income from Y0to Y1. Just opposite happens when government decreases their expenditure. b)Increase/decrease in taxes Source: http://www.economicsdiscussion.net/keynesian-economics/policies/monetary-and- fiscal-policy-effects-and-changes-with-diagram/15779 Similarly, when there is an increase in taxes from T0to T1, we can easily observe, there is ashift in the IS curve i.e. towards the left from IS0(T0) to IS, (T1). Since we know that taxes are nothing but a leakage from the circular flow of income, so Y falls from Y0to Y1and the rates falls from r0to r, and finally the market is at equilibrium. Just opposite happens when government reduces the tax rate.
Monetary policy implemented by Central Bank of a country: The government, through their Central Bank implement monetary policy, which ultimately effects employment, investment, output and income in an economy (ceteris paribus). Central bank of a country reduces or increases rate of interest for bank borrowing and lending in an economy. This is done after looking at all macro economic data and other aspects of an economy which can make impact on recessionary or inflationary condition of an economy. Inflationary situation can lead to increase in bank rate and deflationary situation can lead to cut/reduction in bank rate. Unemployment types CyclicalUnemployment ClassicalUnemployment FrictionalUnemployment RegionalUnemployment SeasonalUnemployment StructuralUnemployment VoluntaryUnemployment Disguised Unemployment Demand Pull Inflation and Cost Push Inflation: Demand pull inflation: It occurred due to rise in demand of products and shortage of supply lead to an increase in inflation rate. (ceteris paribus) Cost push inflation: It is a phenomenon where due to increase in cost of products and fall in supply inflation rises. (ceteris paribus) Application of AD-AS to economic situations The aggregate supply (AS) is provided by the firm in an economy through its total production of goods and services for selling into the market. The aggregate demand (AD) is the total amounts of goods and services purchased by consumer in market at all possible prices. (ceteris paribus) Gradual reduction in aggregate demand can lead to recessionary situation in an economy, while, gradual decrease or decrease in aggregate supply can lead to inflationary situation. So to be in equilibrium condition AD should remain equal to AS. It is called position of equilibrium in an economy and most ideal for an economy.(ceteris paribus) Change in quantity demanded Vs change in demand
Change in demand: When the entiredemandcurve shifts either towards left or right, we call it as, Change in demand(ceteris paribus). As depicted in diagram given below: Change in quantity demanded: When due to change in price, demand movement happens at same demand curve, it is called change in quantity demanded(ceteris paribus). In this case demand curve does not sift right or left side of existing demand curve rather it move in same demand curve from one point to another point. As given in diagram below. Reconciliation of accounting and economic costs Cost reconciliation statement is actually the statement which we prepare for “reconciling the profit between financial account and cost account .Or we can say that a cost reconciliation statement is a statement which is used for reconciling the profits or losses that are shown by cost accounts and financial accounts. It is a statement wherein the causes responsible for the difference in net profit or loss between cost and financial accounts are established and suitable adjustments are made to remove them. In other words, cost reconciliation statement is prepared for the purpose of reconciling or agreeing the results of financial accounts with the results of cost accounts by making suitable adjustments for the items responsible for the disagreement.” (accountlearning.blogspot.com, Accounting Management) Cost curves (with diagram) (ceteris paribusis applicable wherever it is necessary)
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Fixed cost: It is a component of cost which remain fixed and does not changes with the change in production level as depicted in diagram given below, which clearly show that Total fixed cost (TFC) remain constant at every level of production. Variable Cost: Variable cost as the name suggest vary with the change in production level. It is alo shown the diagram given below. You can see that TVC (Total variable cost is changing with the change in every stage of production. Total cost: When we add both the costs, Fixed Cost and Variable Cost its outcome will be Total Cost (TC). It is also shown in the given diagram as TC (Total cost). Hence, Total Cost = Total Fixed Cost + Total Variable cost Diagram depicting all three major costs Production possibility frontier (in curves with diagram) (ceteris paribus applicable wherever it is required) As it can be seen in given diagram that point D and E are inefficient combination where all resources are not fully utilized, hence it is not appropriate to produce at this inefficient level. It can also be seen in same diagram given below that point F is an output combination which is not attainable, it is out of production possibility frontier and resources are not sufficient to achieve that level of production. Only production combination is attainable is at point A, B and C these all are lying along with the PPF curve which can be seen in diagram given below.
So in a sense, PPF curve provide most appropriate level or combination of production which can be produced by producers and it is very much attainable. Source: https://www.tutor2u.net/economics/reference/production-possibility-frontier-video Profit maximization determination Firm reaches its maximum profit where Marginal cost is equal to Marginal revenue and marginal cost is on rising trend. It can also be seen in graph given below, where firm maximizes it profit at the level where MC=MR.(ceteris paribusapplicable wherever it is required)
Source: https://www.intelligenteconomist.com/profit-maximization-rule/ As you can see above diagram that most appropriate level of production is at quantity Q where both marginal cost = Marginal Revenue or Average Revenue. Where as in other two level of quantity at Point A and Point B both are not at equilibrium level or profit maximization level. Hence, optimal quantity produced at MC = MR
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References: courses.lumenlearning.com, The Expenditure Multiplier Effect.Retrieved June 06, 2019, From https://courses.lumenlearning.com/wm-macroeconomics/chapter/the-expenditure-multiplier-effect/ accountlearning.blogspot.com, Accounting Management. Retrieved June 06, 2019, From https://accountlearning.blogspot.com/2011/12/concept-and-meaning-of-cost.html Kari, Diptimai, Monetary and Fiscal Policy: Effects and Changes (With Diagram).Retrieved June 06, 2019, Fromhttp://www.economicsdiscussion.net/keynesian-economics/policies/monetary-and-fiscal- policy-effects-and-changes-with-diagram/15779 Chand, Smriti, Effectiveness of Monetary and Fiscal Policy (explained with diagram). Retrieved June 06, 2019, Fromhttp://www.yourarticlelibrary.com/policies/effectiveness-of-monetary-and-fiscal-policy- explained-with-diagram-economics/29271 Boundless Economics, Introducing Aggregate Demand and Aggregate Supply. Retrieved June 06, 2019, Fromhttps://courses.lumenlearning.com/boundless-economics/chapter/introducing-aggregate- demand-and-aggregate-supply/ Intelligent Economist, (2019). Profit Maximization Rule. Retrieved June 06, 2019, From https://www.intelligenteconomist.com/profit-maximization-rule/