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PORTFOLIO INVESTMENT: The acquisition of financial assets (which includes stock, bonds, deposits, and currencies) from one country in another country. In contrast to foreign direct investment, which is the acquisition of controlling interest in foreign firms and businesses, portfolio investment is foreign investment into the stock markets. Most economists consider foreign direct investment more useful than portfolio investment since this last one is generally regarded as temporal and can leave the foreign country at the first sign of trouble.

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PERFECT COMPETITION, SHORT-RUN PRODUCTION ANALYSIS

A perfectly competitive firm produces the profit-maximizing quantity of output that equates marginal revenue and marginal cost. This production level can be identified using total revenue and cost, marginal revenue and cost, or profit. Because a perfectly competitive firm faces a perfectly elastic demand curve, it efficiently allocates resources by equating price and marginal cost. In addition, the marginal cost curve above the average variable cost curve is the perfectly competitive firm's short-run supply curve.

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BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time strolling through a department store looking to buy either a brown leather attache case or car battery jumper cables. Be on the lookout for cardboard boxes.
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This isn't me! What am I?

A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"People of mediocre ability sometimes achieve outstanding success because they don't know when to quit. Most men succeed because they are determined to. "

-- George Allen, U.S. senator

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