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MARGINAL PROPENSITY TO SAVE: The proportion of each additional dollar of household income that is used for saving. Or alternatively, this is the change in saving due to a change in disposable income. Abbreviated MPS, the marginal propensity to save is the slope of the saving or propensity-to-save line. It also takes center stage for the multiplier effect. In particular, the inverse of the MPS is the simple expenditure multiplier. The sum of the marginal propensity to save and the related concept, the marginal propensity to consume, is equal to one.

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FOUR-SECTOR, THREE-MARKET CIRCULAR FLOW

A circular flow model of the macroeconomy containing four sectors (business, household, government, and foreign) and three markets (product, factor, and financial) that illustrates the continuous movement of the payments for goods and services between producers and consumers, with particular emphasis on exports and imports. Other circular models are two-sector, two-market circular flow; two-sector, three-market circular flow; and three-sector, three-market circular flow.

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Today, you are likely to spend a great deal of time searching the newspaper want ads trying to buy either a New York Yankees baseball cap or several magazines on home repairs. Be on the lookout for fairy dust that tastes like salt.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
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A nth-order Autoregressive Process
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