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LONG-RUN ADJUSTMENT: The combined adjustment of an industry and of each firm in the industry to an equilibrium condition that based on (1) profit maximization when all inputs are variable and (2) the entry and exit of firms. The complete adjustment is undertaken by both perfect competition and monopolistic competition. There are two parts of this adjustment process. One is the adjustment of each firm to the appropriate factory size that maximizes long-run profit. The other is the entry of firms into the industry or exit of firms out of the industry, to eliminated economic profits or economic losses. The end result of this long-run adjustment is different for the two market structures based on the fact that perfect competition has equality between price and marginal revenue, while monopolistic competition does not.
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ASSUMPTIONS, CLASSICAL ECONOMICS Classical economics, especially as directed toward macroeconomics, relies on three key assumptions--flexible prices, Say's law, and saving-investment equality. Flexible prices ensure that markets adjust to equilibrium and eliminate shortages and surpluses. Say's law states that supply creates its own demand and means that enough income is generated by production to purchase the resulting production. The saving-investment equality ensures that any income leaked from consumption into saving is replaced by an equal amount of investment. Although of questionable realism, these three assumptions imply that the economy would operate at full employment.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway hoping to buy either a case for your designer sunglasses or arch supports for your shoes. Be on the lookout for rusty deck screws.
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Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
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"Laughter is the shortest distance between two people. " -- Victor Borge, musician, humorist
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AR(N)
A nth-order Autoregressive Process
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