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NET DOMESTIC PRODUCT AND NATIONAL INCOME: Net domestic product (NDP) is the total market value of all final goods and services produced within the political boundaries of an economy during a given period of time, usually a year, after adjusting for the depreciation of capital. National income (NI) is the total income earned by the citizens of the national economy resulting from their ownership of resources used in the production of final goods and services during a given period of time, usually one year. The five main differences between net domestic product and national income are (1) indirect business taxes, (2) business transfer payments, (3) net foreign factor income, (4) government subsidies, and (5) statistical discrepancy.

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MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS

Decreasing then increasing marginal cost, reflected by a U-shaped marginal cost curve, is the result of increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of short-run production. This translates into a positively-sloped supply curve for profit-maximizing competitive firms.

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Today, you are likely to spend a great deal of time at the confiscated property police auction trying to buy either a Boston Red Sox baseball cap or a square lamp shade with frills along the bottom. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The average bank teller loses about $250 every year.
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