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KEYNESIAN MODEL: A macroeconomic model based on the principles of Keynesian economics that is used to identify the equilibrium level of, and analyze disruptions to, aggregate production and income. This model identifies equilibrium aggregate production and income as the intersection of the aggregate expenditures line and the 45-degree line. The Keynesian model comes in three basic variations designated by the number of macroeconomic sectors included--two-sector, three-sector, and four sector. The Keynesian model is also commonly presented in the form of injections and leakages in addition to the standard aggregate expenditures format. This model is used to analyze several important topics and issues, including multipliers, business cycles, fiscal policy, and monetary policy.
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MONOPOLISTIC COMPETITION A market structure characterized by a large number of small firms, similar but not identical products sold by all firms, relative freedom of entry into and exit out of the industry, and extensive knowledge of prices and technology. This is one of four basic market structures. The other three are perfect competition, monopoly, and oligopoly. Monopolistic competition approximates most of the characteristics of perfect competition, but falls short of reaching the ideal benchmark that IS perfect competition. It is the best approximation of perfect competition that the real world offers.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"Ships are safe in harbor. But that is not what ships are for." -- Anonymous
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TI
Taxable Income
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