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AGGREGATE EXPENDITURE DETERMINANTS: An assortment of ceteris paribus factors that affect aggregate expenditures, but which are assumed constant when the aggregate expenditure line is constructed. Changes in any of the aggregate expenditures determinants cause the aggregate expenditure line to shift. While a wide variety of specific ceteris paribus factors can cause the aggregate expenditure line to shift, it's usually most convenient to group them into the four, broad expenditure categories -- consumption, investment, government purchases, and net exports. The reason is that changes in these expenditures are the direct cause of shifts in the aggregate expenditure line. If any determinant affects aggregate expenditures it MUST affect one of these four expenditures.

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Lesson Contents
Unit 1: Economics
  • Definition
  • More...
  • Unit 1 Summary
  • Unit 2: Doing Economics
  • Science and Policy
  • The Fields
  • Unit 2 Summary
  • Unit 3: The Economy
  • An Economy
  • A Mixed Economy: Markets and Government
  • A Mixed Economy: The Mix
  • Unit 3 Summary
  • Unit 4: Economic Goals
  • Economic Goals
  • Tradeoffs
  • Unit 4 Summary
  • Unit 5: Economic Policies
  • The Concept
  • Reasons
  • Problems
  • Unit 5 Summary
  • Course Home
    Economic Basics

    Being the very first lesson in this course, this provides an introduction and overview of economics. You'll come across a lot of basic concepts and terms. The full importance of these may not become apparent until later lessons, but they will be important. The five units making up this lesson set the stage for the further study of economics.

    • The first unit offers up a basic definition and provides two useful lists -- the three questions of allocation and the seven rules of economics.
    • The second unit then explores the practice of economics, including positive and normative economics, macroeconomics and microeconomics, and six common logical fallacies.
    • In the third unit, we turn our attention to the economy, especially how real world economies contain a mix of markets and governments.
    • We then examine the five basic goals of a mixed economy in the fourth unit, include the three macro goals of full employment, stability, and growth; and the two micro goals of efficiency and equity.
    • The fifth and final unit in this lesson considers assorted economic policies that governments use to achieve the five economic goals.

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    AVERAGE REVENUE PRODUCT

    Total revenue generated per unit of a variable input, keeping all other inputs unchanged. Average revenue product, usually abbreviated ARP, is found by dividing total revenue by the variable input or by multiplying average physical product by average revenue. Average revenue product is a part of marginal productivity theory used to analyze the demand for productive inputs.

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    APLS

    BROWN PRAGMATOX
    [What's This?]

    Today, you are likely to spend a great deal of time searching the newspaper want ads hoping to buy either a set of steel-belted radial snow tires or a wall poster commemorating the 2000 Presidential election. Be on the lookout for pencil sharpeners with an attitude.
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    This isn't me! What am I?

    North Carolina supplied all the domestic gold coined for currency by the U.S. Mint in Philadelphia until 1828.
    "Don't be distracted by criticism. Remember the only taste of success some people have is when they take a bite out of you."

    -- Zig Ziglar

    PIH
    Permanent Income Hypothesis
    A PEDestrian's Guide
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