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2 pages/β‰ˆ550 words
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APA
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Mathematics & Economics
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Coursework
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English (U.S.)
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Topic:

Income-Expenditure Model and the Simple Expenditure Multiplier Formula

Coursework Instructions:

This assignment can be found in Google Docs: https://docs(dot)google(dot)com/document/d/1ziCp6GuqyEwbh2tT5nrBze_wlkFDNL5wWk33tWnZc7Q/edit
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Suppose the economy is operating at potential GDP, something like was the case for the U.S. in mid-2018. The unemployment rate has reached historic lows, suggesting that the economy is at full employment. Now suppose that due to an economic slowdown in Europe, U.S. export sales decline. Use the income-expenditure model to analyze the impact this decrease in export expenditures will have on U.S. GDP and employment. Show graphically and explain your economic reasoning.
To make this more concrete, here are some specific numbers to work with. Suppose potential GDP occurs where Y = $10,000 billion. Suppose that the marginal propensity to consume is 0.75. If we assume that both taxes and imports are given then the simple expenditure multiplier formula applies. Suppose exports fall by $100 billion. Use the multiplier formula to estimate the change in GDP. Suppose further that for every one percentage point that GDP falls below potential, the unemployment rate will rise by half of one percentage point. How much then will the unemployment rate rise due to the decrease in exports?
Rubric
Criteria Not Evident Developing Proficient Distinguished Weight
Use the income-expenditure model to analyze this problem graphically, showing the initial and final equilibrium points. Label appropriately. 4
Correctly explain the economic reasoning about what happens to GDP and employment, and most importantly, why. 4
Use the simple expenditure multiplier formula to correctly compute the change in GDP. 4
Converting the change in GDP to percent, use the information provided to estimate the effect of the change in GDP on the unemployment rate (in percent). 4
Write up your analysis using correct language, explaining all your work 4

Coursework Sample Content Preview:

Income Expenditure Model
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Multiplier Effect
Suppose the economy is operating at potential GDP, something like was the case for the U.S. in mid-2018. The unemployment rate has reached historic lows, suggesting that the economy is at full employment. Now suppose that due to an economic slowdown in Europe, U.S. export sales decline. Use the income-expenditure model to analyze the impact this decrease in export expenditures will have on U.S. GDP and employment. Show graphically and explain your economic.
In the event of a decline in U.S. exports, it directly means a decline in aggregate demand. Thus, the demand curve will shift from “A.D.” to AD1. Consequently, the Gross Domestic Output (GDP) will decline from “Q” to “Q1”. A fall in demand also means that the companies’ profits will shrink. As a result, layoffs will start happening. Thus, a fall in aggregate demand results out of proportion decline in GDP. When households are laid off, their marginal propensity to spend also goes down, and they will buy less. Other s...
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