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MARGINAL EFFICIENCY OF INVESTMENT: The anticipated rate of return on a capital investment project undertaken by a business firm. Businesses typically compare the marginal efficiency of investment, abbreviated MEI, on physical capital with interest rate returns on financial capital when deciding to undertake an investment project. Because different investment projects have different returns, businesses often have a range of alternatives projects from which to choose. Combining all projects throughout the economy gives rise to an investment demand curve relating investment expenditures to the interest rate.

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INCREASING-COST INDUSTRY

A perfectly competitive industry with a positively-sloped long-run industry supply curve that results because expansion of the industry causes higher production cost and resource prices. An increasing-cost industry occurs because the entry of new firms, prompted by an increase in demand, causes the long-run average cost curve of each firm to shift upward, which increases the minimum efficient scale of production.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time driving to a factory outlet trying to buy either a stretchable, flexible watch band or high-gloss photo paper that works with your printer. Be on the lookout for fairy dust that tastes like salt.
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Three-forths of the gold mined each year is used to manufacture jewelry.
"How we spend our days is, of course, how we spend our lives. "

-- Annie Dillard, essayist

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