Macroeconomic Analysis and its Impact on Aggregate Variables

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Macroeconomic Analysis and its Impact on Aggregate Variables EACH QUESTION SHOULD BE AT LEAST 75 WORDS. 1. Suppose MPC is 0.8 initially. Households then change their behavior so that the MPC falls to 0.75. What happens to aggregate expenditures? Why? When the MPC falls, it means that households are spending less of any additional income they receive. Aggregate expenditures (AE) are calculated as the sum of consumption (C), investment (I), government spending (G), and net exports (NX). The MPC is a key factor in determining consumption (C), which directly affects aggregate expenditures. Why does AE change? A decrease in the MPC means that the multiplier effect (the process through which initial changes in spending lead to larger total changes in output and income) becomes smaller. The spending multiplier is given by the formula: 2. How is an aggregate demand curve derived? What would cause the aggregate demand curve to shift to the right? • Derivation of the Aggregate Demand Curve: The aggregate demand (AD) curve shows the total quantity of goods and services demanded in an economy at different price levels. It is derived from the total spending in the economy, which consists of: AD=C+I+G+NXAD = C + I + G + NXAD=C+I+G+NX Where: o CCC is consumption o III is investment o GGG is government spending
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