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WIDGET: A fictitious good commonly used by economic instructors to demonstrate economic principles or undertake hypothetical analyses. For example, the analysis of short-run production for a firm might be demonstrated through the production of widgets. Alternatively, the law of demand might be illustrated with a table or curve comparing the price of widgets with the quantity demanded of widgets. If such a good exists, and there is no clear evidence that widgets have every existed, it is a small mechanical device, constructed of interlocking cogs, several knobs, and at least one handle. Widgets are most often used when thingamajigs and dohickies are unavailable.

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Lesson Contents
Unit 1: Intro
  • Definition
  • Characteristics
  • A Mix
  • Product Differentiation
  • Unit 1 Summary
  • Unit 2: Revenue And Cost
  • The Revenue Numbers
  • The Revenue Curves
  • The Cost Numbers
  • The Cost Curves
  • Unit 2 Summary
  • Unit 3: Output
  • The Numbers
  • The Curves
  • Long-Run Equilibrium
  • Unit 3 Summary
  • Unit 4: Analysis
  • Profit, Loss, And Supply
  • Efficiency And Excess Capacity
  • Advertising
  • Unit 4 Summary
  • Unit 5: Evaluation
  • The Bad: Inefficient
  • The Good: Differences
  • Regulation
  • Unit 5 Summary
  • Course Home
    Monopolistic Competition

    • The first unit of this lesson, A Bunch Of Firms, begins this lesson with a look at the nature of monopolistic competition and how it is related to other market structures.
    • In the second unit, Revenue And Cost, we review the revenue side and the cost side the production decision for a monopolistically competitive firm.
    • The third unit, The Output Level, then looks at the profit-maximizing output production decision by a firm in monopolistic competition.
    • In the fourth unit, Doing Some Analysis, we examine a few of the implications of market characterized by monopolistic competition.
    • The fifth and final unit, Good Or Bad?, then closes this lesson by considering the good and the bad of monopolistic competition.

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    MONETARY POLICY CHANNELS

    The routes through which monetary policy by the Federal Reserve System affects aggregate production and macroeconomic activity. The six most important monetary policy channels are: interest rate, exchange rate, wealth, equities, bank lending, and balance sheet. These six channels are interdependent and mutually reinforcing. The interest rates channel is usually the most important, but all six channels generally come into play.

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    APLS

    PURPLE SMARPHIN
    [What's This?]

    Today, you are likely to spend a great deal of time strolling through a department store seeking to buy either a tall storage cabinet with five shelves and a secure lock or a birthday greeting card for your grandmother. Be on the lookout for deranged pelicans.
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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.
    "Nobody can be successful unless he loves his work. "

    -- David Sarnoff, TV pioneer

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    Arbitrage Pricing Theory
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