CAS EC 101 Lecture Notes - Lecture 15: Arc Elasticity, Wwwq, World Of A Song Of Ice And Fire

interval (or arc) elasticity

cross-price elasticity

price elasticity of demand

elastic demand

income elasticity

inelastic demand

inframarginal units

marginal revenue

point elasticity

price effect

quantity effect

total revenue

unitary elastic demand

1. __________________ A measure of consumers’ sensitivity or responsiveness to changes in the price of a good or service.

2. ___________________ When the percentage change in price (in absolute value) is more than the percentage change in quantity demanded (in absolute value).

3. ___________________ When the percentage change in quantity demanded (in absolute value) is more than the percentage change in price (in absolute value).

4. ___________________ When the percentage change in quantity demanded (in absolute value) is just equal to the percentage change in price (in absolute value).

5. ___________________ Total amount paid to a producer for a good or service P * Q.

6. ___________________ The effect on total revenue of a change in price, holding quantity constant.

7. ___________________ The effect on total revenue of a change in quantity, holding price constant.

8. ___________________ An elasticity calculated over an interval of a demand curve or demand schedule.

9. ___________________ Elasticity at a specific price or point on a demand curve.

10. ___________________ A measure of how responsive quantity demanded is to a change in income, all other things constant.

11. ___________________ A measure showing how responsive the quantity demanded of one good is to changes in the price of another good, other factors constant.

12. ___________________ The additional revenue received by producing and selling one more unit of output.

13. ___________________ Units of output that could have been sold at a higher price had the firm not lowered its price to sell additional (marginal) units.

1. In economics, the demand for a good refers to the amount of the good that people:
a. Will buy at alternative income levels
b. Need to achieve a minimum standard of living.
c. Will buy at various prices
d. Would like to have if the good were free
2. The term ceteris paribus means that:
a. What is for the individual is not necessarily true for the whole
b. All variables except those specified are constant
c. Everything is variable
d. No one knows which variables will change and which will remain constant.
3. When economist talk about supply, they are referring to a relationship between price received for each unit sold and the ____________________.
a. Quantity supplied
b. Demand schedule
c. Demand curve
d. Market price
4. But nearly all supply curves share a basic similarity: they slop______________.
a. Up from left to right
b. Down from left to right
c. Up from right to left
d. Down from right to left
5. The nature of demand indicates that as the price of a good increases:
a. Suppliers wish to sell less of it.
b. Buyers desire to purchase less of it
c. More of it is desired
d. More of it is produced
6. Any given demand or supply curve is based on the certeris paribus assumption that _______.
a. Everything is variable
b. All else is held equal
c. No one knows which variables will change and which will remain constant
d. What is true for the individual is not necessary true for the whole.
7. Economist refer to the relationship that a higher price leads to lower quantity demand as the ______________.
a. Price model
b. Law of demand
c. Market equilibrium
d. Income gap
8. A perfect elastic supply curve is:
a. Vertical
b. Downward sloping to the left
c. Horizontal
d. Upward sloping to the right
9. A 10 percent increase in the price of soda leads to a 20 percent increase in the quantity of iced tea demanded. It appears that:
a. Elasticity of demand for iced tea is 2 and is elastic
b. Cross-price elasticity of demand for iced tea is -2
c. Cross-price elasticity of demand for soda is -0.5
d. Elasticity of demand for soda 0.5 AND IS INELASTIC
10. ___________ is the change in what is on the horizontal axis (quantity) divided by the change in what is the vertical axis (price).
a. Elasticity
b. Supply
c. Demand
d. Revenue
11. A severe freeze has once again damaged the Florida orange crop. The impact on the market for orange juice will be a leftward shift of:
a. The supply curve and the rightward shift of the demand curve resulting in a higher equilibrium price
b. Both the supply and demand curves
c. The supply curve
d. The demand curve, as consumers try to economize because the shortage.
12. Got the answer.
13. A drought decreases the supply of agricultural products, which means that at any given price a lower quantity will be supplied; conversely, especially good weather would shift the _____________.
a. Demand curve to the right
b. Supply curve to the left
c. Supply curve to the right
d. Demand curve to the left
14. Interpret the following statements:

1. If the cross price elasticity of demand between two commodities is positive, then these commodities are

Select one:

a. are complements.

b. are inferior.

c. are superior.

d. are substitutes.

Answer...?

2. Along a given indifference curve, a consumer reduces the quantity of one good in favor of more units of the other. In this situation

Select one:

a. the marginal utility of the first rises and the marginal utility of the second good falls.

b. Total utility rises.

c. Both the marginal rate of substitution falls and the marginal utility of the first rises and the marginal utility of the second good falls are correct.

d. the marginal rate of substitution falls.

Answer...?

3. Along a given indifference curve, a consumer reduces the quantity of one good in favor of more units of the other. In this situation

Select one:

a. the marginal utility of the first rises and the marginal utility of the second good falls.

b. Total utility rises.

c. Both the marginal rate of substitution falls and the marginal utility of the first rises and the marginal utility of the second good falls are correct.

d. the marginal rate of substitution falls.

Answer...?

4. Moral hazard is a barrier to financing global growth because

Select one:

a. of the differences between financing using loans, portfolio investment and foreign direct investment.

b. there is the possibility that the funds are used for riskier behavior than the lender agreed to.

c. firms sometimes have trouble determining whether they need funds or not.

d. if investors have trouble identifying high-risk firms they may be unwilling to give money to creditworthy firms.

5. Moral hazard is a barrier to financing global growth because

Answer...?

6. Which of the following statements is FALSE?

Select one:

a. Price elasticity of supply can never equal 1.

b. Time is an important consideration in determining supply elasticity.

c. A horizontal supply curve is possible.

d. A perfectly inelastic supply curve is a vertical line.

Answer...?

7. Corporations are able to raise large amounts of financial capital because

Select one:

a. of limited liability and the treatment of a corporation as an individual entity.

b. of the tax breaks corporations are given relative to partnerships or proprietorships.

c. of the elimination of the problem of separation of ownership and control.

d. of their greater ability to monitor the performance of decision makers.

Answer...?

8. The largest quota subscriber of the International Monetary Fund (IMF) is

Select one:

a. China.

b. Japan.

c. Germany.

d. the United States.

Answer...?

9. To derive the demand curve from the indifference map,

Select one:

a. vary the prices of both goods while holding income constant.

b. vary the price of one good while holding the price of the other good and income constant.

c. vary income while holding the prices constant.

d. vary the price of one good and income while holding the price of the other good constant.

Answer...?

10. As an individual consumes more of a particular commodity, the total level of utility derived from that consumption will

Select one:

a. increase at a constant rate.

b. increase at a decreasing rate.

c. remain constant.

d. increase at an increasing rate.

Answer...?

11. Which of the following is a TRUE statement about stock markets?

Select one:

a. It is always better to buy growth stocks than the older and more stable blue-chip stocks.

b. Economists can make above-average profits in the stock market because of their specialized knowledge of economics.

c. It is illegal for a friend of a corporate executive to make large profits in the stock market by using his inside information.

d. The stock market on average over time is random and totally unrelated to the performance of the economy.

Answer...?

12. Income elasticity of demand is defined as

Select one:

a. the percentage change in demand divided by the percentage change in income.

b. the percentage change in income divided by the percentage change in quantity demanded.

c. the change in quantity demanded divided by the change in market price.

d. the change in quantity demanded divided by the change in income.

Answer...?

13. The consumption possibilities curve is the

Select one:

a. budget constraint.

b. indifference curve.

c. supply curve.

d. demand curve.

Answer...?

14. According to the random walk theory,

Select one:

a. the probability that a stock's price will increase tomorrow is greater if it increased today.

b. the probability that a stock's price will increase tomorrow is greater if it decreased today.

c. the best forecast of tomorrow's price is today's price.

d. the best forecast of tomorrow's price is found by determining the trend for the last five trading days.

Answer...?

15. "Unit elasticity of demand can be found everywhere along a straight-line demand curve with a slope of -1." Do you agree or disagree? Explain.

Answer:

16. For which of the following would the absolute price elasticity of demand be greatest?

Select one:

a. Pepsi Cola

b. Tickets to the Super Bowl

c. Salt

d. Gasoline

Answer...?

16. The price of a hamburger is $1 and the price of a movie is $4 and the consumer has $10. A consumer has purchased 2 hamburgers and 2 movies, receiving 25 units of utility for the second hamburger and 100 units of utility for the second movie. The set of goods

Select one:

a. is not an optimum because the marginal utility per dollar spent is greater for hamburgers than for movies.

b. is not an optimum because the consumer has not spent all of his money.

c. is an optimum since the entire income is spent and total utility is minimized.

d. is an optimum since the entire income is spent and the marginal utility per dollar spent is the same for the last unit of each good.

Answer...?

17. Marginal utility

Select one:

a. is stable, but then as a person consumes more of a good or service, has a propensity to increase.

b. equals the total satisfaction from consumption of goods and services.

c. can be thought of as being the equivalent to total utility.

d. at first rises and then declines as a person consumes more of a good or service.

Answer...?

18. The nominal rate of interest is 4% and the anticipated rate of inflation is 5%. What is the real rate of interest?

Select one:

a. 1%

b. 4%

c. -1%

d. 9%

Answer...?

19. Using the above table, what is the total utility of consuming 3 bottles of soda?

Select one:

a. 115

b. 135

c. 120

d. 240

Answer...?

20. Dead capital is

Select one:

a. machinery that fails to operate properly.

b. a capital resource that depreciates rapidly.

Answer...?

21. What is the annual rate of growth of per capita real GDP if real GDP grows at a constant rate of 5 percent per year and the annual rate of population growth is 3 percent?

Select one:

a. 1.7 percent

b. 8 percent

c. 5 percent

d. 2 percent

c. machinery that requires constant maintenance.

d. any capital resource that lacks clear title of ownership.

Answer...?