MGEA02H3 Study Guide - Midterm Guide: Inferior Good, Economic Surplus, Opportunity Cost

55 views3 pages

bluewhale187

24 Jul 2020

School

UTSC

Department

Economics for Management Studies

Course

MGEA02H3

Professor

Gordon Cleveland

For unlimited access to Study Guides, a Grade+ subscription is required.

wanyiwu and 39094 others unlocked

MGEA02H3 Full Course Notes

Verified Note

38 documents

Document Summary

Answers to test #1, ecma04, october 17, 2009: version a: the opportunity cost of y is dx/dy or -1/(dy/dx). = 4 x 0. 5(900 x2)-0. 5 -2x = -4x(900 x2)-0. 5. When x = 18, the opportunity cost of x = 72/24 = 3, so the opportunity cost of y = 1/3. The correct answer is (a): from above, the opportunity cost of x is 4x(900 x2)-0. 5. When x = 24, the opportunity cost of x = 96/18 = 5. 33. The correct answer is (f): u = xy2. Y = 4(900 x2)0. 5 and y2 = (14,400 16x2), so u = x(14,400 16x2) = (14,400x 16x3). To find the maximum utility, take the derivative and set equal to zero. du/dx = 14,400 48x2 = 0 or x2 = 300 or x = 17. 32. This can be modeled as a movement from a point like b to a point like c. the correct answer is (g): the vice principal of research disagrees.

Related Questions

1. Which of the following actions reflect self-interested behavior?
(i) Warren Buffett, one of the world's wealthiest individuals, donated more than $30 billion to humanitarian causes such as AIDS and tuberculosis initiatives.
(ii) Pfizer Inc., a private pharmaceutical company, sponsored a disease-management program for Florida's Medicaid patients with chronic illnesses such as asthma, diabetes and heart disease.
(iii) You agree to babysit your 8-year-old brother instead of going to a kick-boxing class.
(iv) You agree to babysit your 8-year-old brother instead of going to a kick-boxing class only if your mother pays you $8 an hour.
A. (iv) only
B. (ii) and (iii) only
C. All of the above actions except (iii)
D. All of the above actions

2. Unlimited wants and limited resources:
A. Can be overcome through innovation
B. Can be overcome by increasing wealth
C. Are not problems faced by wealthy industrialized nations
D. Necessitate choices about the goods to services to consume

3. The production possibilities frontier can be used to demonstrate which of the following?
(i) The best tradeoffs that individuals and societies should make
(ii) The tradeoffs forced on individuals and societies because of scarcity
(iii) The wealth maximizing output combination that an individual or society should choose
A. (i), (ii) and (ii)
B. (i) only
C. (ii) only
D. (iii) only

Figure 1-1 shows the production possibility frontier for the hypothetical country, Lindenderry, which produces only two goods: corn and automobiles. Assume that Lindenderry uses all its productive resources to their maximum capacity.

Figure 1-1

4. If Lindenderry is using its productive resources to their maximum capacity, it must be producing a combination of goods given by a point such as:
A. Point U, V or W
B. Point U, X or W
C. Point V, U or T
D. Point X

5. If Lindenderry is at point U, producing 1300 tons of corn and 34 million automobiles, what is the opportunity cost of an additional 11 million automobiles?
A. 1,100 tons of corn
B. 2,200 tons of corn
C. 200 tons of corn
D. 18.2 tons of corn

6. Suppose Lindenderry is at point S, producing 700 tons of corn and 56 million automobiles. What happens if it sacrifices 11 million automobiles?
A. It moves to point T and gains 400 tons of corn
B. It moves to point T and gains 1,110 tons of corn
C. It moves to point W and gains 700 tons of corn
D. It moves to point W and loses 11 million automobiles

7. Suppose the price of a banana is $0.50, the price of a can of soda is $1.00 and the price of a power bar is $1.50. What is the opportunity cost of a banana?
A. $0.50
B. 1/2 of a power bar
C. 1/3 of a can of soda
D. 1/2 can of soda or 1/3 of a power bar

8. Which of the following statements is false?
A. Mother Teresa faced trade-offs when deciding to help lepers in India rather than some other needy group
B. When the government funds research into cancer, it is able to avoid trade-offs because public funds are used rather than private funds
C. When you volunteer to help at a soup kitchen, you face an opportunity cost of your time
D. Economics brings tradeoffs to light but does not inform us of which trade-offs society should make

9. Which the following would be likely to raise your opportunity cost of going to college full-time?
(i) You have been offered a full-time job as wardrobe assistant to Paris Hilton that pays $60,000 per year.
(ii) You have been offered a merit scholarship that pays for two years of tuition.
(iii) Your landlord increases the rent on the apartment you are currently living in and will continue to live in even if you choose to attend college full-time.
(iv) An increase in the value of your college trust fund set up by your grandfather.
A. All of the above
B. All of the above except (ii)
C. (i) only
D. (i) and (iii) only

Suppose Galesburg produces only two goods: textiles and wheat. Table 1-1 shows the combinations of the two goods that Galesburg can produce if it uses all its productive resources to their maximum capacity.

Table 1-1

10. If Galesburg is currently producing at point H, what is the opportunity cost of obtaining an additional 100 bushels of wheat?
A. 360 bales of textiles
B. 240 bales of textiles
C. 60 bales of textiles
D. 20 bales of textiles

11. Suppose Galesburg is currently producing at point K and would like to move to point J. This movement:
A. Enables it to obtain an additional 20 bales of textiles and an additional 60 bushels of wheat
B. Requires a sacrifice of 60 bushels of wheat to obtain an additional 20 bales of textiles
C. Enables Galesburg to increase textile production with no reduction in wheat production
D. Suggests that point K is an inefficient choice for Galesburg

12. Suppose Galesburg is currently producing 60 bales of textiles and 200 bushels of wheat. Which of the following statements is true?
A. It is not possible to produce more wheat without sacrificing any textiles
B. It is possible to produce more wheat without sacrificing any textiles
C. The people of Galesburg do not value wheat as highly as they value textiles
D. The price of wheat must have fallen, so producers have reduced their supply of wheat

13. Suppose the people of Galesburg want to consume 50 bales of textiles and 310 bushels of wheat. Are they able to achieve this?
A. Yes, if they are willing to pay higher prices for these products to induce suppliers to produce them
B. No, at this time Galesburg has insufficient resources to satisfy its consumers' wants
C. Yes, if they rearrange their resource use so as to increase total output
D. No, Galesburg must increase its money supply in order to do so

14. The opportunity cost of an item is:
A. The price you paid to acquire that item
B. What you could have bought if you did not purchase that item
C. What it costs to make that item
D. Higher than what you paid to obtain that item

15. The opportunity cost of an item is:
A. The value of all the alternatives that must be given up in order to engage in any economic activity
B. The average value of all the alternatives that you forego in order to engage in any economic activity
C. The highest-valued alternative that must be given up in order to engage in any economic activity
D. The lowest-valued alternative that must be given up in order to engage in any economic activity

Show transcribed image text

1. Suppose that there is a tax of $1 per unit, and the elasticity of supply is 3 and the elasticity of demand is 2 (in absolute value). How much of the $1 tax is paid by sellers?

		$0.60
		$0.40
		$0.75
		$0.67

2. In Market X, the external benefit of consumption is $5. In Market Y, the external cost of consumption is $10. Efficiency in both markets could be achieved by:

		a tax of $5 in Market X and a subsidy of $10 in Market Y.
		subsidizing both markets.
		taxing Market Y and subsidizing Market X.
		taxing both markets.

3.Economic theory suggests that a natural monopoly should be:

		eliminated whenever it arises.
		regulated to take advantage of economies of scale.
		left alone to operate with excess capacity.
		taken over by the government.

4.When the size of the production is the most efficient:

		total cost is at the minimum.
		average cost is at the minimum.
		marginal cost is at the minimum.
		fixed cost is at the minimum.

5.A firm should exit the industry if which of the following conditions apply?

		TR > TC
		P < AC
		Lifetime expected profit is positive.
		Prices are low now but expected to rise.

6.Figure: Costs

Reference: Ref 11-6

(Figure: Costs) Use the figure. At a price of $20, the firm earns profit of:

		$75.
		$300.
		$225.
		$0, because P = MC at P = $20.

7.When external benefits are present, the market price is ________, however when external costs are present, the market price is ________.

		too low; too high
		equal to the efficient price; too low
		too high; too low
		equal to the efficient price; too high

8.Which of the following statements is TRUE?

I. The EPA's tradeable allowances program for sulfur dioxide establishes property rights to pollute and helps reduce transaction costs by distributing allowances, maintaining databases, and monitoring emissions.

II. One criticism of tradeable allowances is that they prohibit non-businesses and environmental groups from purchasing the allowances.

III. The tradeable allowances for sulfur dioxide have performed poorly because electricity output has increased, causing a rise in sulfur dioxide levels.

		I only
		II and III only
		I, II, and III
		III only

9.Price floors make it illegal to compete for more customers by lowering prices, so firms compete by offering customers:

		various options.
		more quantity.
		more discount.
		higher quality.

10.Figure: Government Price Controls

Reference: Ref 8-3

(Figure: Government Price Controls) Refer to the figure. If the government sets the price ceiling at $31, there will be:

		a shortage of 15 units.
		a surplus of 15 units.
		a supply of 20 units.
		no effect on the market.

11.In which of these instances does price function as a signal in the market?

		Suppliers invest more in exploration when the price of oil increases.
		Consumers complain of price gouging as the price of oil skyrockets.
		Government imposes price controls on the skyrocketing price of oil.
		All of the answers are correct.

12.Ethanol and sugar are both made from sugar cane, and ethanol can be used as substitute fuel for oil. Increasing oil prices cause the demand for ethanol to increase. This will cause the ______ sugar to ______ and its price to ______.

		demand for; decrease; decrease
		supply of; increase; increase
		supply of; decrease; increase
		demand for; increase; increase

13.Why do cotton growers spend billions of dollars to dam rivers and transport water hundreds of miles to grow cotton in California deserts?

		Cotton growers in California don't pay payroll taxes.
		The water used to grow California cotton is highly subsidized by the government.
		Cotton growers in California are mostly operated as nonprofit enterprises.
		The water used to grow California cotton is high in mineral contents, making for a bigger cotton yield.

14.Suppose that the equilibrium price in the market is $10. If the current market price is $7.50:

		the equilibrium price will fall to $7.50.
		competition among buyers will increase the current price.
		the current price will fall below $7.50 as sellers compete for market share.
		There is not enough information provided to answer the question.

15.Which of the following would increase the demand for beef?

		lower pork prices
		higher consumer income
		higher prices of feed grains used to feed beef cattle
		an increase in the price of beef

16.A change in quantity supplied is reflected by a movement along the same supply curve while a change in supply refers to a shift in the entire supply curve.

True

False

17.Table: Production in the United States and Germany

Labor units required to produce:

One Clock

One Sofa

United States		2	5
Germany		3	9

Reference: Ref 2-8

(Table: Production in the United States and Germany) According to the table, the opportunity cost of producing one sofa in the United States is _________, and the opportunity cost of producing one sofa in Germany is _______.

		two clocks; three clocks
		10 clocks; 27 clocks
		0.4 clocks; 0.33 clocks
		2.5 clocks; three clocks

18.Mark values his drum set at $800 and Ella values her guitar at $1,000. Suppose that Mark trades his drum set for Ella's guitar.

		This trade makes Ella worse off by $200.
		This trade makes Mark better off by $200.
		Mark must value Ella's guitar for at least $1,000, and Ella must value Mark's drum set for at least $800.
		This trade creates value by moving the guitar and drum set to people who value them more.