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PERFECT COMPETITION AND EFFICIENCY: Perfect competition is the idealized market structure that achieves an efficient allocation of resources. The conditions of perfect competition, including (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology, ensure that perfect competition efficiently allocates resources. This is in fact the purpose of perfect competition: a market structure that illustrates perfection, the best of all possible resource allocation worlds. The real world falls short of this perfection.

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Lesson 2: Economic Science | Unit 3: Verification Page: 12 of 20

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  • How an hypothesis is verified using real world data.
  • Ways to obtain data that can be used to test an hypothesis.
  • The importance of the ceteris paribus assumption that other factors remain unchanged when testing an hypothesis.
  • What it means to the scientific method when an hypothesis does and does not agree with real world data.
  • How continually testing an hypothesis that agrees with real world data eventually gives us a principle.
  • Why an hypothesis that does not agree with real world data can be just as valuable to the scientific method as one that does not.

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INFLEXIBLE PRICES

The proposition that some prices adjust slowly in response to market shortages or surpluses. This condition is most important for macroeconomic activity in the short run and short-run aggregate market analysis. In particular, inflexible prices (also termed rigid prices or sticky prices) are a key reason underlying the positive slope of the short-run aggregate supply curve. Prices tend to be the most inflexible in resource markets, especially labor markets, and the least inflexible in financial markets, with product markets falling between the two.

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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club seeking to buy either storage boxes for your income tax returns or an AC adapter for your CD player. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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More money is spent on gardening than on any other hobby.
"Don't be distracted by criticism. Remember the only taste of success some people have is when they take a bite out of you."

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