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FEDERAL FUNDS RATE: The interest rate that banks charge each other when loaning bank reserves through the federal funds market. This is a key interest rate in the economy because helps to determine banks' minimum cost of getting funds. If the federal funds rate is higher, then banks are likely to raise the interest rates they charge, like the prime rate, home mortgage rate, or rate on car loans.

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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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FOUR-FIRM CONCENTRATION RATIO

The proportion of total output in an industry produced by the four largest firms in an industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. Another related measure is the Herfindahl index. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control held by the four largest firms in the industry.

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Today, you are likely to spend a great deal of time at a going out of business sale looking to buy either a large, stuffed giraffe or a birthday greeting card for your aunt. Be on the lookout for strangers with large satchels of used undergarments.
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Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
"We succeed in enterprises (that) demand the positive qualities we possess, but we excel in those (that) can also make use of our defects."

-- Alexis de Tocqueville, Statesman

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