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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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Lesson 1: Economic Basics | Unit 4: Goals Page: 12 of 18

Topic: Tradeoffs <=PAGE BACK | PAGE NEXT=>

Pursuing one goal is usually at the expense of another, we have tradeoffs.

Three reasons for tradeoffs:

  • First, resources used to pursue one goal cannot be used to pursue another.
  • Second, actions that move us toward one goal can move us away from another.
  • Third, pursuing a goal may be good for some, but bad for others.
A thought:
  • Economists are inclined to stress efficiency more than others--but efficiency is only one of several goals.

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COLLUSION

A usually secret agreement among competing firms in an industry (primarily oligopoly) to dominate the market, control the market price, and otherwise act like a monopoly. The reason for the secrecy is that such behavior is illegal in the United States under antitrust laws. Collusion can take one of two forms. Explicit collusion occurs when two or more firms in the same industry formally agree to control the market. Implicit collusion occurs when two or more firms in the same industry control the market through informal, interdependent actions. Collusion is one of two ways oligopoly firms cooperate to avoid competition. The other is through mergers.

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