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EQUATION OF EXCHANGE: An equation that specifies the relation between the money supply, the velocity of money, the price level, and real production. The equation is stated as M*V = P*Q, where M is the money supply, V is the velocity, P is the price level, and Q is real production. This equation is a key component of the quantity theory of money, which offers an explanation between the money supply and inflation.

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Lesson Contents
Unit 1: Instability
  • Overview
  • Business Cycles
  • Expansionary Good Times
  • Contractionary Bad Times
  • Unit 1 Summary
  • Unit 2: A Simple Cycle
  • Long-Run Trend
  • Contraction
  • Trough
  • Expansion
  • Peak
  • Unit 2 Summary
  • Unit 3: Measurement
  • Indicators
  • Leading
  • Coincident
  • Lagging
  • Unit 3 Summary
  • Unit 4: Causes
  • Complexity
  • Investment
  • The Process
  • Politics
  • The Process
  • Unit 4 Summary
  • Unit 5: Policies
  • Options
  • Expansionary
  • Contractionary
  • Unit 5 Summary
  • Course Home
    Business Cycles

    To purpose of this lesson is to examine the nature and causes of macroeconomic instability, which goes by the handy title business cycles. Business cycles are the recurring expansions and contractions of economic activity that generate the problems of unemployment and inflation. This lesson explores how business cycles can be stabilized with the goal of lessening unemployment and inflation.

    • The notion of business cycles is introduced in the first unit of this lesson, with an eye on what they are and why they are important to study.
    • The four components of a standard, simple business cycle -- expansion, peak, contraction, and trough -- are then presented and discussed in the second unit.
    • The third unit is devoted to several key measures of business cycle activity, especially leading, lagging, and coincident indicators.
    • A couple of the most often discussed causes of business-cycle instability -- investment and politics -- are discussed in the fourth unit.
    • The fifth unit closes out this lesson with an introduction to the expansionary and contractionary economic policies used to stabilize business cycles.

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    MARKET

    The organized exchange of commodities (goods, services, or resources) between buyers and sellers within a specific geographic area and during a given period of time. Markets are the exchange between buyers who want a good (the demand-side of the market) and the sellers who have it (the supply-side of the market).

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    APLS

    GRAY SKITTERY
    [What's This?]

    Today, you are likely to spend a great deal of time flipping through mail order catalogs wanting to buy either a flower arrangement for that special day for your mother or a New York Yankees baseball cap. Be on the lookout for jovial bank tellers.
    Your Complete Scope

    This isn't me! What am I?

    Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
    "Look at the abundance all around you as you go about your daily business. You have as much right to this abundance as any other living creature. It's yours for the asking."

    -- Earl Nightingale

    GMB
    Good Merchandise Brand
    A PEDestrian's Guide
    Xtra Credit
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