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SALES TAX: A tax on retail sales. This is major source of revenue for many state and local governments. Because poorer people tend to spend a larger share of their income on stuff covered by sales taxes, it tends to be a regressive tax. To reduce this regressiveness, some state and local governments excluded items like food and medicine.

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Lesson Contents
Unit 1: Intro
  • Definition
  • Making A Monopoly
  • Real World Monopoly
  • Perfect Competition
  • Imperfect Competition
  • Unit 1 Summary
  • Unit 2: Revenue
  • Market Control
  • Monopoly Demand
  • Monopoly Revenue
  • The Numbers
  • Marginal Revenue
  • The Curves
  • Elasticity And The Curves
  • Unit 2 Summary
  • Unit 3: Output
  • Motivation
  • Total Numbers
  • Marginal Numbers
  • Total Curves
  • Profit Curve
  • Marginal Curves
  • Unit 3 Summary
  • Unit 4: Evaluation
  • Economic Profit
  • Loss Minimization
  • Efficiency
  • Short-Run Supply?
  • Unit 4 Summary
  • Unit 5: Regulation
  • Inefficiency
  • Antitrust Laws
  • Regulatory Pricing
  • Unit 5 Summary
  • Course Home
    Monopoly

    While this lesson on monopoly is not necessarily a "how to" guide for the monopolization of a market, it does provide insight into the nature and function of the monopoly market structure. We get a little insight into how a monopoly is created, and a lot of insight into what a monopoly does once it does have control of the market. Throughout this lesson, I'll me making snide comments about how inefficient monopoly is compared to more competitive markets.

    • The first unit of this lesson, One Firm, begins this lesson with a look at the nature of monopoly and how it is related to other market structures.
    • In the second unit, Revenue, we examine the revenue side of a market dominated by monopoly -- including total revenue, average revenue, and marginal revenue.
    • The third unit, Output, then looks at the profit-maximizing output production decision by a monopoly using assorted graphs and tables.
    • In the fourth unit, Evaluation, we analyze the profit-maximizing decision of monopoly in terms of profit, loss, efficiency, and short-run supply.
    • The fifth and final unit, Regulation, then closes this lesson by considering the role government plays in regulating monopoly.

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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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    APLS

    RED AGGRESSERINE
    [What's This?]

    Today, you are likely to spend a great deal of time touring the new suburban shopping complex wanting to buy either decorative picture frames or storage boxes for your income tax returns. Be on the lookout for broken fingernail clippers.
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    Paper money used by the Commonwealth of Massachusetts prior to the U.S. Revolutionary War, which was issued against the dictates of Britain, was designed by patriot and silversmith, Paul Revere.
    "The time to repair the roof is when the sun is shining."

    -- John F. Kennedy, 35th U. S. president

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