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PERFECT COMPETITION AND SHORT-RUN SUPPLY CURVE: A perfectly competitive firm's supply curve is that portion of its' marginal cost curve that lies above the minimum of the average variable cost curve. A perfectly competitive firm maximizes profit by producing the quantity of output that equates price and marginal cost. As such, the firm moves along it's marginal cost curve in response to alternative prices. Because the marginal cost curve is positively sloped due to the law of diminishing marginal returns, the firm's supply curve is also positively sloped.
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INTERNATIONAL TRADE The exchange of goods and services among the nations of the world. Also termed foreign trade when viewed from the perspective of a given country, the international exchange of production is comparable to any exchange, except that buyers and sellers are from different countries. The study of international trade highlights an important economic principle, the law of comparative advantage, which helps to explain not only why nations engage in trade but why individuals engage in trade. A related area of study is international finance, both of which are part of the broader study of international economics.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"Only great minds can afford a simple style." -- Stendhal, writer
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CACM
Central American Common Market
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