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The key idea of the aggregate expenditure model is that in any particular year, the level of GDP is determined mainly by
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The level of aggregate expenditure.
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If aggregate expenditure is more than GDP, how will the economy reach macroeconomic equilibrium?
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Inventories will decline, and GDP and employment will rise.
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If disposable income increases by $100 million, and consumption increases by $90 million, then the marginal propensity to consume is
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0.9
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If disposable income falls by $50 billion and consumption falls by $40 billion, then the slope of the consumption function is
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0.80
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If the MPC is 0.5, then a $10 million increase in disposable income will increase consumption by
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$5 million
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If the growth rate of U.S. GDP is slower than the growth rate of GDP in other countries what happens to US net exports?
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US net export rises
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How will a decrease in government purchases affect aggregate expenditure in the United States?
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Decrease it
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If inflation in the United States is higher than inflation in other countries, what will be the effect on net exports for the United States?
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Net exports will decrease as U.S. exports decrease.
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On the 45-degree line diagram, the 45-degree line shows points where
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real aggregate expenditure equals real GDP.
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When aggregate expenditure = GDP, what occurs?
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macroeconomic equilibrium
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If aggregate expenditure is less than GDP, how will the economy reach macroeconomic equilibrium?
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Inventories will rise, and GDP and employment will decline.
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Growth in real GDP per hour worked in the United States was slowest during what period of time?
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1973-1994
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What happened during the productivity slowdown in the US during the mid 1970's in regard to oil prices?
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High oil prices raised the costs of doing business for markets worldwide, and reduced output worldwide as well.
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The "New Economy" that emerged in the mid-1990s is based on
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information technology.
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The economic growth model predicts that
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the level of real GDP per capita in poor countries will grow faster than in rich countries.
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The purchase or building by a corporation of a facility in a foreign country is called
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foreign direct investment.
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The process of countries becoming more open to foreign trade and investment is called
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Globalization
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Increasing vaccinations against infectious diseases, undergoing political reform to decrease corruption, and enacting stronger laws to protect property rights are all policies which promote
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long-run economic growth
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Because of diminishing returns, an economy can continue to increase real GDP per hour worked only if
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there is technological change.
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The productivity slowdown of the mid-1970s can be explained by
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a decline in labor quality
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Consider two countries, Alpha and Beta. In Alpha, real GDP per capita is $6,000. In Beta, real GDP per capita is $9,000. Based on the economic growth model, what would you predict about the growth rates in real GDP per capita across these two countries?
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The growth rate of real GDP per capita will be higher in Alpha than it is in Beta.
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Developing countries with low saving rates and poor levels of health and education are likely to experience
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low rates of growth in real GDP per capita.
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How is GDP per capita in developing countries affected by globalization?
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It experiences a higher growth rate
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Enforcing property rights in an economy will cause the level of investment to
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be raised
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While the Soviet Union had plenty of capital, their economy still failed. what are three reasons for their economic failure?
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A centrally planned economy, no competition between firms, not enough technological change
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Total spending = total production at
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macroeconomic equilibrium
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How will a decrease in social security payments affect consumption spending?
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decrease it
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What does Autonomous expenditure not depend on?
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Real GDP
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When the price level in the United States falls relative to the price level of other countries, _____ will fall, _____ will rise, and _____ will rise.
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imports, exports, net exports
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When the price level in the United States rises relative to the price level of other countries, _____ will fall, _____ will rise, and _____ will fall.
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exports, imports, net exports
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If disposable income increases by $100 million, and consumption increases by $80 million, then the marginal propensity to consume is
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0.8
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If the MPC is 0.2, then a $10 million increase in disposable income will increase consumption by
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$2 million
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How does an increase in government purchases affect the aggregate expenditure line?
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It shifts the aggregate expenditure line upward.
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The multiplier is calculated by
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change in real GDP/ change in autonomous expenditure.
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If an increase in investment spending of $50 million results in a $500 million increase in equilibrium real GDP, then the multiplier is
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10
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The multiplier _____ as the MPC rises
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rises
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According to the graph, at what point is aggregate expenditure less than GDP?
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L
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According to the graph, at what point will inventories fall and firms increase production?
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J
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What causes a movement along the AD curve?
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an change in price level (A - B or B - A)
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An increase in household's expectations will shift the AD curve
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right (AD1 to AD2)
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What causes a movement along the SRAS curve?
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a change in price level (A - B or B - A)
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An increase in labor force would shift the SRAS curve
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right (SRAS1 to SRAS2)
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The AD curve shows the relationship between
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the price level and the quanitity of real GDP demanded by households, firms, and the government
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The SRAS curve shows the relationship between
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the price level and the quantity of real GDP supplied by firms
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Y stands for
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GDP
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C stands for
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Consumption
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I stands for
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Investment
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G stands for
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government purchases
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NX stands for
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net exports (exports - imports)
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The process by which an increase or decrease in price causes real household wealth to decrease or increase respectively
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The wealth effect
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Private Saving =
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Y+TR-C-T
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Public Saving=
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T-G-TR
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What prevents a country from developing (5 factors)
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Wars and revolution, poor public education, poor public health, low rates of savings, low rates of investment
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Sources of technological changes (3)
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Better machinery and equipment, increase in human capital, better means of organizing and managing production
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Foreign Direct Investment (FDI) is when
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Companies build factories and promote jobs in foreign countries
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The two policies that promote technological changes
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FDI, Subsidizing research and development (R&D)
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Policy that promotes savings and investment (1)
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Tax incentives
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AE =
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C+I+G+NX
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Y =
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C+I+G+NX
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Five variables that determine consumption
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current disposable income, household wealth, expected future income, price level, interest rate
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Disposable income =
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Y+TR-T
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The most important determinant of consumption is
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Disposable income
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correlation between expected future income and consumption
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positive
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correlation between interest rates and consumption
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negative
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correlation between price level and consumption
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negative
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MPC =
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Change in consumption/change in disposable income
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Variables that determine level of investment
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Expectations of future profitability, interest rate, taxes, cash flows
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correlation of expectations of future profitability and investment
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positive
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correlation of interest rate and investment
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negative
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correlation of corporate income tax and investment
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negative
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correlation of investment tax incentives and investment
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positive
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cash flow =
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cash revenue-cash spending
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correlation of cash flow and investment
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positive