Mankiw Chapter 5 Yoda Quiz

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Mankiw Chapter 5 Yoda Quiz - Quiz

An Amateur Econ Quiz by YoDa.


Questions and Answers
  • 1. 

    What is the measure of the responsiveness of quantity demanded to a change in price?

    • A.

      Price Elasticity of Supply

    • B.

      Price Elasticity of Demand

    • C.

      Income Elasticity of Demand

    • D.

      Cross-Price Elasticity of Demand

    Correct Answer
    B. Price Elasticity of Demand
    Explanation
    Price elasticity of demand measures the responsiveness of quantity demanded to a change in price. It indicates how sensitive consumers are to changes in price, and whether a change in price will result in a significant change in quantity demanded. A higher price elasticity of demand suggests that consumers are more responsive to price changes, while a lower elasticity suggests that consumers are less responsive.

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  • 2. 

    If the demand were ___________, the quantity demand changes proportionately to price changes.

    Correct Answer
    unit elastic demand, unit elastic, unit elasticity
    Explanation
    Unit elastic demand refers to a situation where the quantity demanded changes proportionately to price changes. This means that a certain percentage change in price will result in an equal percentage change in quantity demanded. In other words, the demand is neither elastic (where a small change in price leads to a large change in quantity demanded) nor inelastic (where a change in price has a relatively small effect on quantity demanded). Instead, the demand is exactly proportional to price changes, resulting in a unit elastic demand.

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  • 3. 

    A measure of how much the quantity demand of one good responds to a change in the price of another good.

    • A.

      Income Elasticity of Demand

    • B.

      Time Elasticity of Demand

    • C.

      Close Substitute Elasticity of Demand

    • D.

      Cross-Price Elasticity of Demand

    • E.

      Market Elasticity of Demand

    Correct Answer
    D. Cross-Price Elasticity of Demand
    Explanation
    Cross-Price Elasticity of Demand is a measure of how much the quantity demanded of one good responds to a change in the price of another good. It indicates whether the two goods are substitutes or complements. A positive cross-price elasticity suggests that the goods are substitutes, meaning that an increase in the price of one good leads to an increase in the quantity demanded of the other good. On the other hand, a negative cross-price elasticity suggests that the goods are complements, meaning that an increase in the price of one good leads to a decrease in the quantity demanded of the other good.

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  • 4. 

    For many goods, as time goes by, would the elasticity of demand become more elastic or more inelastic?

    • A.

      Elastic

    • B.

      Inelastic

    • C.

      Unit Elastic

    • D.

      Remain the Same

    Correct Answer
    A. Elastic
    Explanation
    As time goes by, the elasticity of demand for many goods would become more elastic. This means that the percentage change in quantity demanded would be greater than the percentage change in price. This could be due to various factors such as the availability of substitute goods, changes in consumer preferences, or the presence of more competitors in the market. As consumers have more options and alternatives, they become more responsive to price changes, making the demand more elastic.

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  • 5. 

    When the supply of oil falls, what would happen to the quantity demanded in the long run?

    • A.

      The quantity supplied drops in great amount.

    • B.

      The quantity demanded falls slightly.

    • C.

      The quantity demanded drops in great amount.

    • D.

      The quantity supplied falls slightly.

    • E.

      The quantity demanded increases substantially.

    Correct Answer
    C. The quantity demanded drops in great amount.
    Explanation
    When the supply of oil falls, the quantity demanded in the long run would also decrease significantly. This is because when the supply of oil decreases, it becomes more scarce and expensive. As a result, consumers would reduce their demand for oil, as they would either find alternatives or reduce their overall consumption. This decrease in quantity demanded would be significant as it reflects a long-term adjustment to the reduced supply of oil.

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  • 6. 

    If a good is a necessity, the demand for the good would be rather

    • A.

      Elastic

    • B.

      Inelastic

    • C.

      Unit Elastic

    • D.

      Superior

    • E.

      Inferior

    Correct Answer
    B. Inelastic
    Explanation
    If a good is a necessity, the demand for the good would be rather inelastic. This means that even if there is a change in price, the demand for the good will not change significantly. Necessities are essential items that people need regardless of the price, such as food, water, and basic healthcare. People are willing to pay whatever price is necessary to obtain these goods, so their demand remains relatively constant. Therefore, the demand for a necessity is generally inelastic.

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  • 7. 

    The prices of the hamburgers increased by 8% and made the quantity demanded of hot dogs increase by 10%. What is the cross-price elasticity of demand? Are these two goods substitutes or complements?

    • A.

      5/4, Complements

    • B.

      4/5, Complements

    • C.

      5/4, Substitutes

    • D.

      4/5, Substitutes

    Correct Answer
    C. 5/4, Substitutes
    Explanation
    The cross-price elasticity of demand measures the responsiveness of the quantity demanded of one good to a change in the price of another good. In this case, the price of hamburgers increased by 8% and the quantity demanded of hot dogs increased by 10%. A positive cross-price elasticity indicates that the goods are substitutes, meaning that an increase in the price of one good leads to an increase in the demand for the other good. The correct answer is 5/4, Substitutes, because a 10% increase in the quantity demanded of hot dogs is greater than the 8% increase in the price of hamburgers, resulting in a cross-price elasticity greater than 1.

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  • 8. 

    If the elasticity of an island in the Caribbeans were shown as above, how would the quantity demanded (acres) change as the price increase from $10 to $25?

    • A.

      Increase by 2250 acres

    • B.

      Decrease by 2250 acres

    • C.

      Increase by 15 acres

    • D.

      Decrease by 15 acres

    • E.

      Remain the Same

    Correct Answer
    E. Remain the Same
    Explanation
    The answer is "Remain the Same" because the elasticity of demand is zero. This means that a change in price does not affect the quantity demanded. Regardless of whether the price increases or decreases, the quantity demanded remains constant.

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