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ZERO-SUM GAME: A situation in which a fixed amount is divided up among the winners and losers. In a zero-sum game the wins equal the losses. Many stock market, or financial market, exchanges are zero-sum. One person buys low and sells high, while another buys high and sells low. The wealth in such transactions are merely transferred from one person to another. "Productive" market transactions, in contrast, are not zero-sum. The act of producing goods and services from resources that are consumed to satisfy wants and needs results in a net gain to society.
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MARGINAL PROPENSITY TO SAVE The proportion of each additional dollar of household income that is used for saving. The marginal propensity to save (abbreviated MPS) is another term for the slope of the saving line and is calculated as the change in saving divided by the change in income. The MPS plays a central role in Keynesian economics. It quantifies the saving-income relation, which is the flip side of the consumption-income relation, and thus it reflects the fundamental psychological law. It is also a critical to the multiplier process. A related saving measure is the average propensity to save.
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GREEN LOGIGUIN
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Today, you are likely to spend a great deal of time at a going out of business sale seeking to buy either a birthday gift for your mother or a weathervane with a horse on top. Be on the lookout for high interest rates.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
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"Chance favors only the prepared mind." -- Louis Pasteur, biologist
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RJE
RAND Journal of Economics
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