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MARGINAL COST AND MARGINAL PRODUCT: Because variable cost is largely associated with the cost of employing a variable input in the short run, it's possible to identify a connection between the marginal cost curve and the marginal product curve. In particular, the quantity of output in which marginal cost is at a minimum, is the same quantity of output produced by the variable input when the marginal product of the variable input is at a maximum. In addition, over the range of production in which the variable input experiences increasing marginal returns and marginal product increases, the marginal cost curve declines. And over the range of production in which the variable input experiences decreasing marginal returns brought on by the law of diminishing marginal returns and marginal product increases, the marginal cost curve is rising.
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Lesson 9: Macro Basics | Unit 5: Issues
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Page: 15 of 16
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Using the scientific method to test macroeconomic theories is an evolving process. Over time, more hypotheses are tested and macroeconomic theories grow, expand and improve.- Hypotheses from macroeconomic theories are not easily subject to experimental testing. Economists can't control the economy but must wait for it to cooperate.
- The result of combining different political philosophies and vested interests with the inability to provide definitive explanations, creates alternative, competing theories that seek to explain the world.
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PERSONAL INCOME The total income received by the members of the domestic household sector, which may or may not be earned from productive activities during a given period of time, usually one year. Personal income (PI) is one of three measures of income reported in the National Income and Product Accounts maintained by the Bureau of Economic Analysis. The other two are national income (NI) and disposable income (DI). Two related measures of production are gross domestic product (GDP) and net domestic product (NDP). The primary use of personal income is to measure the income actually paid out to the household sector. After adjusting for income taxes, personal income forms the basis for consumption expenditures on gross domestic product.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at a going out of business sale hoping to buy either an AC adapter that won't fry your computer or a case for your designer sunglasses. Be on the lookout for pencil sharpeners with an attitude.
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
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"It takes generosity to discover the whole through others. If you realize you are only a violin, you can open yourself up to the world by playing your role in the concert. " -- Jacques Yves Cousteau, marine explorer
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ARIMA
Autoregressive Integrated Moving Average
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