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GOVERNMENT PURCHASES LINE: A graphical depiction of the relation between government purchases and national income (or gross domestic product) that plays a role in Keynesian economics and the Keynesian cross. The slope of this line is positive, greater than zero, less than one, and goes by the name marginal propensity for government purchases. The vertical intercept of this line is autonomous government purchases. The aggregate expenditures line used in the Keynesian cross is obtained by adding this government purchases line, as well as, investment expenditures and net exports, to the consumption line. The government purchases line is also combined with investment expenditures for the Keynesian saving-investment model.
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INDUCED CONSUMPTION Household consumption expenditures that depend on income or production (especially disposable income, national income, or even gross domestic product). That is, changes in income induce changes in consumption. Induced consumption captures the fundamental psychological law put forth by John Maynard Keynes. It is measured by the marginal propensity to consume (MPC) and is reflected by the positive slope of consumption line. The alternative to induced consumption is autonomous consumption, which does not depend on income.
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Okun's Law posits that the unemployment rate increases by 1% for every 2% gap between real GDP and full-employment real GDP.
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"Most people never run far enough on their first wind to find out they've got a second. Give your dreams all you've got and you'll be amazed at the energy that comes out of you." -- William James, Psychologist
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SLLN
Strong Law of Large Numbers
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