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AD-AS MODEL: An economic model relating the price level and real production that is used to analyze business cycles, gross domestic product, unemployment, inflation, stabilization policies, and related macroeconomic phenomena. The AS-AD model, inspired by the standard market model, captures the interaction between aggregate demand (the buyers) and short-run and long-run aggregate supply (the sellers).

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Lesson 2: Economic Science | Unit 2: Theory Page: 7 of 20

Topic: Economic Theories <=PAGE BACK | PAGE NEXT=>

Three common economic theories:
  • Markets theory: It helps us understand how and why prices change, shortages and surpluses occur, and markets are monopolized.
  • Aggregate Markets theory: It uses principles and concepts developed in the theory of markets, but adapts them to the study macroeconomic things like inflation, unemployment, national production, and business cycles.
  • Keynesian theory: Named after it's creator John Maynard Keynes, it was developed to explain high rates of unemployment and other economic conditions that existed during the Great Depression of the 1930s.

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PERFECT COMPETITION, FACTOR MARKET ANALYSIS

The analysis of a factor market characterized by perfect competition indicates that each buyer maximizes profit by equating marginal revenue product to the factor price. This achieves an efficient allocation of resources and provides a benchmark for analyzing other factor market structures, including monopsony, monopoly, and bilateral monopoly.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites trying to buy either a flower arrangement with a lot of roses for your grandmother or a wall poster commemorating the first day of winter. Be on the lookout for neighborhood pets, especially belligerent parrots.
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The portion of aggregate output U.S. citizens pay in taxes (30%) is less than the other six leading industrialized nations -- Britain, Canada, France, Germany, Italy, or Japan.
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Pacific Stock Exchange (US, LA and San Francisco)
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