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DATA: Real world observations that are used to test or verify hypotheses. This is the key to the process of acquiring knowledge about the world using the scientific method. While theoretical speculation might indicate what we "think" the world is like, we don't know for sure until we compare our hypothesized view with the real world itself. Data is what adds empirical to empirical economic analysis.

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Lesson Contents
Unit 1: The Set Up
  • Demand Review
  • Bring On Utility
  • Choices
  • Unit 1 Summary
  • Unit 2: A Simple Choice
  • One Good
  • Demand For A Good
  • Unit 2 Summary
  • Unit 3: Complex Choices
  • Two Goods
  • How Much Of Each?
  • A Short Cut?
  • Income And Prices
  • Rule Of Consumer Equilibrium
  • Unit 3 Summary
  • Unit 4: On To Demand
  • A Generalized Choice
  • A Price Change
  • Marginal Utility Curve
  • Unit 4 Summary
  • Unit 5: Beyond Demand
  • Many Choices
  • Demand Elasticity
  • Market Supply
  • Unit 5 Summary
  • Course Home
    Utility and Demand

    This lesson undertakes a detailed investigation into the decision-making process underlying the purchase of goods and services. Doing so provides a behind-the-scenes examination of market demand, offering an explanation for the inverse relation between demand price and quantity demanded that is the law of demand.

    • The first unit of this lesson, The Set Up, begins with a review of the market demand and consumer demand theory.
    • In the second unit, A Simple Choice, we examine the decision-making process for purchasing a single good.
    • The third unit, Complex Choices, then complicates matters slightly by adding a second good into the decision making mix.
    • The fourth unit, On To Demand, presents the rule of consumer equilibrium that captures the essence of this decision-making process and how it helps explain the law of demand.
    • The fifth unit and final unit, Beyond Demand, explores how consumer demand theory provides insight to noneconomic choices, demand elasticity, and market supply.

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    INCREASING-COST INDUSTRY

    A perfectly competitive industry with a positively-sloped long-run industry supply curve that results because expansion of the industry causes higher production cost and resource prices. An increasing-cost industry occurs because the entry of new firms, prompted by an increase in demand, causes the long-run average cost curve of each firm to shift upward, which increases the minimum efficient scale of production.

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    Today, you are likely to spend a great deal of time watching the shopping channel seeking to buy either a turbo-powered vacuum cleaner or a battery-powered, rechargeable vacuum cleaner. Be on the lookout for high interest rates.
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    The first "Black Friday" on record, a friday marked by a major financial catastrophe, occurred on September 24, 1869 -- A FRIDAY -- when an attempted cornering of the gold market induced a financial crises and economy-wide depression.
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