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HOTELLING'S PARADOX: A principle stating that monopolistically competitive firms seek to maintain similarities between products at the same time they maintain differences. Similarities enable substitutability. That is, one firm can attract the buyers away from other firms. Differences enable uniqueness and market control. That is, a firm has a small monopoly for its product that allows it to charge a higher price than achieved with perfect competition. This is also termed the principle of minimum differences.

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Lesson 1: Economic Basics | Unit 2: Doing Economics Page: 4 of 18

Topic: Science and Policy <=PAGE BACK | PAGE NEXT=>

The study of economics involves both scientific investigation and policy analysis.

Economists practice both:

  • Positive economics, which uses the scientific method to uncover the basic mechanism of the economy. It seeks to describe the way this world is ARE.
  • Normative economics, which is the policy side of economics. It seeks to prescribe the way the world SHOULD BE.

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PRICE INDEX

A measure of the average of a group of prices calculated as a ratio to prices in a given time period (that is, a base year). A price index is primarily used to compare relative prices, or changes in the group prices over time. Such an index is a handy indicator of overall price trends. Two common price indexes that surface in the study of macroeconomics are the Consumer Price Index (CPI) and the GDP price deflator. Both are used to indicate the macroeconomy's average price level and to estimate the inflation rate. The Dow Jones Industrial Average (the Dow), Standard & Poor's 500, and the NASDAQ are well-known indexes of stock market prices.

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Today, you are likely to spend a great deal of time at a crowded estate auction seeking to buy either a large green chalkboard shaped like the state of Maine or a replacement battery for your pocket calculator. Be on the lookout for cardboard boxes.
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The first paper currency used in North America was pasteboard playing cards "temporarily" authorized as money by the colonial governor of French Canada, awaiting "real money" from France.
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