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DISPOSABLE INCOME: The total income that can be used by the household sector for either consumption or saving during a given period of time, usually one year. This is the income left over after income taxes and social security taxes are removed and government transfer payments, like welfare, social security benefits, or unemployment compensation are added.

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Lesson 2: Economic Science | Unit 1: The Method Page: 4 of 20

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  • The basics of the scientific method used to identify and explain the world.
  • An overview of the four components of the scientific method--theory, principles, hypotheses, and data.
  • How hypotheses are derived from a theory and how they are tested against real world data.
  • How the hypothesis verification process is used to identify scientific principles that enable a new, improved theory.

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PERFECT COMPETITION, REVENUE DIVISION

The marginal approach to analyzing a perfectly competitive firm's short-run profit maximizing production decision can be used to identify the division of total revenue among variable cost, fixed cost, and economic profit. The U-shaped cost curves used in this analysis provide all of the information needed on the cost side of the firm's decision. The demand curve facing the firm (which is also the firm's average revenue and marginal revenue curves) provides all of the information needed on the revenue side.

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Today, you are likely to spend a great deal of time searching for a specialty store hoping to buy either a coffee table shaped like the state of Florida or storage boxes for your summer clothes. Be on the lookout for fairy dust that tastes like salt.
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Francis Bacon (1561-1626), a champion of the scientific method, died when he caught a severe cold while attempting to preserve a chicken by filling it with snow.
"Learn to enjoy every minute of your life. Be happy now. Don't wait for something outside of yourself to make you happy in the future. Think how really precious is the time you have to spend, whether it's at work or with your family. Every minuteshould be enjoyed and savored."

-- Earl Nightingale

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