This report analyzes the impact of a decrease in consumer confidence on an open economy, using the IS-LM model. It examines the effects on interest rates, consumption, investment, the real exchange rate, and net exports, with graphical illustrations. The report then discusses appropriate monetary-fiscal policy mixes to address the recession, considering the current low-interest-rate environment, and analyzes the effects of these policies on interest rates, consumption, investment, the real exchange rate, and the budget and trade balances, again with graphical representations. Finally, the report investigates a European country's experience with a liquidity trap, evaluating the effectiveness of fiscal and monetary policies in overcoming the recession and their impact on trade and budget deficits. This analysis provides a comprehensive understanding of macroeconomic principles and policy responses.