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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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ECONOMICS OF UNCERTAINTY

The study of the role that uncertainty plays in the economy and in the allocation of resources, with special attention paid to the analysis of risk. Key topics in this area of study and analysis are risk preferences (aversion, neutrality, and loving) and the provision of insurance. This study of the economics of uncertainty is part of the broader study of the economics of information.

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APLS

RED AGGRESSERINE
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius hoping to buy either several magazines on computer software or a T-shirt commemorating the second moon landing. Be on the lookout for high interest rates.
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
"Don't waste your effort on a thing that results in a petty triumph unless you are satisfied with a life of petty issues. "

-- John D. Rockefeller, industrialist

BPEA
Brookings Papers on Economic Activity
A PEDestrian's Guide
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