ECON 3411 Lecture Notes - Lecture 25: Completeness (Order Theory), Complementary Good, Equilibrium Point

31 views4 pages

magentasardine691

19 Jan 2018

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Consumer equilibrium in action: consider the following consumer market information: No: propose a solution to bring the consumer to an equilibrium point. Trade consumption of x for more y. Comparative statics: pri(cid:272)e a(cid:374)d i(cid:374)(cid:272)o(cid:373)e (cid:272)ha(cid:374)ges i(cid:373)pa(cid:272)t a (cid:272)o(cid:374)su(cid:373)er"s (cid:271)udget set a(cid:374)d level of satisfa(cid:272)tio(cid:374) that can be achieved. This implies that price and income changes will lead to consumer equilibrium changes: this section explores how price and income changes impact consumer equilibrium. Price changes and consumer equilibrium: substitute goods. An increase (decrease) in the price of good x leads to an increase (decrease) in the consumption of good y. Examples: coke and pepsi: complementary goods: An increase (decrease) in the price of good x leads to a decrease (increase) in the consumption of good y. Examples: dvd and dvd players, computer cpus and monitors. When the price of good x falls and the consumption of y rises, then x and y are complementary goods. (px1> px2)

Related Questions

1. Economists use ____________ as a measure of the relative level of satisfaction when someone consumes a good or service.

2. Sue likes brownies. However, Sue notices that the more brownies she eats the less satisfaction she receives from each extra brownie. We can say that Sue is experiencing ___________________ from each extra brownie.

sugar sickness

total utility

diminishing marginal utility

increasing marginal utility

3. When total utility is maximized, the marginal utility will be

4. Consider Dirk and Lee. They are both eating pizza. Which of the following statements is true regarding their satisfaction and utility?

Dirk and Lee both receive 10 utils from eating pizza.

Dirk and Lee both receive the same level of satisfaction from eating pizza.

Dirk gets more twice as much satisfaction as Lee from eating pizza.

It is difficult to determine because the utility is subjective.

5. For many products, the total utility curve is

strictly increasing because of increasing marginal utility.

strictly decreasing because of diminishing marginal utility.

increasing initially because of increasing marginal utility, but eventually decreases.

increasing initially at a decreasing rate because of diminishing marginal utility but eventually decreases.

6. When consumers get the biggest bang for the buck, we say they

used the loudest gun in hunting season.

reached a consumer optimum.

minimized consumer satisfaction.

maximized marginal utility.

7. By choosing to consume at the consumer optimum, consumers will

maximize their total utility.

minimize their total utility.

maximize the amount they spend on each good.

minimize the amount they spend on each good.

8. A consumer is in equilibrium when consuming two goods when which of the following holds?

MU_a/ P_a = MU_b/ P_b

MU_a/ P_h =MU_b/ P_a

P_a/ MU_a = P_b/ MU_b

MU_a x P_a = MU_bxP_b

9. If the marginal utility of good 1 is 15 and its price is $3, and the marginal utility of good 2 is 12, and its price is $4, then the consumer

has achieved a consumer optimum.

should increase his or her consumption of good 1.

should increase his or her consumption of good 2.

should decrease his or her consumption of good 1.

10.Suppose the price of an iPod decrease and the price of HD TVs remains the same; what noticeable effect(s) occur(s)?

the substitution effect only

the real-income effect only

the substitution effect and real-income effect, if there is a noticeable change in purchasing power

the substitution effect and real-income effect, if there isnât a noticeable change in purchasing power

11. The ______________ paradox was described by Adam Smith in 1776.

12. What is the key to solving the diamond-water paradox?

more water and fewer diamonds

marginal utility

total utility

consumer demand

13. When solving the diamond-water paradox we notice that the marginal utility of

diamonds are equal to the marginal utility of water.

diamonds are greater than the marginal utility of water.

diamonds are less than the marginal utility of water.

water is equal to its price, and therefore lower than the marginal utility of diamonds.

14. The consumer surplus for water is

greater than that for diamonds because water is nonessential.

greater than that for diamonds because water is essential.

less than that for diamonds because water is nonessential.

less than that for diamonds because water is essential.

15. Suppose a consumer consumes only diamonds and water, and the price of diamonds increases. All else being equal, a consumerâs marginal utility for diamonds

decreases and the marginal utility for water stays the same.

increases and the marginal utility for water decreases.

decreases and the marginal utility for water increases.

increases and the marginal utility for water stays the same.

tansnake161

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.