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DPI: The abbreviation for disposable personal income, which is the total income that can be used by the household sector for either consumption or saving during a given period of time, usually one year. This is the income left over after income taxes and social security taxes are removed and government transfer payments, like welfare, social security benefits, or unemployment compensation are added. Because consumption and saving are important to our economy for short-run stability and long-run growth, pointy-headed economists like to keep a close eye on disposable personal income. Disposable personal income is reported quarterly (every three months) in the National Income and Product Accounts maintained by the Bureau of Economic Analysis.

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PERFECT COMPETITION, LONG-RUN PRODUCTION ANALYSIS

In the long run, a perfectly competitive firm adjusts plant size, or the quantity of capital, to maximize long-run profit. In addition, the entry and exit of firms into and out of a perfectly competitive market guarantees that each perfectly competitive firm earns nothing more or less than a normal profit. As a perfectly competitive industry reacts to changes in demand, it traces out positive, negative, or horizontal long-run supply curve due to increasing, decreasing, or constant cost.

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APLS

BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time at a dollar discount store trying to buy either 500 feet of coaxial cable or a coffee cup commemorating the 1960 Presidential election. Be on the lookout for the last item on a shelf.
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Two and a half gallons of oil are needed to produce one automobile tire.
"Be civil to all; sociable to many; familiar with few; friend to one; enemy to none. "

-- Benjamin Franklin, statesman

AASB
American Assocation of Small Business
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