ECON-UA 1 Chapter Notes - Chapter 4: Budget Constraint, Ice Cream Cone, Opportunity Cost

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raspberrysheep731

18 Mar 2014

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Firms - profit maximizers (all their actions are geared towards making a profit) Constraints for a consumer - limited purchasing power, or income. A two good model (buy one thing or the other) A consumer is choosing some combination of two goods. > this is a simplified model, can be converted to multiple goods. Budget constraint - all the combinations of goods that are affordable. (the curve) Budget line - all the combination of goods that exhaust the consumer"s income. > consumer spends all his money. (points on the curve) When exhausting all budget on a combination of goods, we get a point on the budget line. 10 x movies + 20 x concerts = (example) Example of budget line: px + py = income (formula) * points above the line are not possible; higher than budget (income). * points below the line are possible, but are not chosen b/c they don"t use up all budget (income)

Related Questions

1) Suppose your grandmother gave you $25 for your birthday and you decided to spend all of it on candy bars and bags of popcorn. The price of candy bars is $1.25 and price of a bag of peanuts is $3.75.

a) Construct a table showing the alternative combinations of the two products that are available.

b) Plot the data in your table as a budget line in a graph. What is the slope of the budget line? What is the opportunity cost of one more candy bar? Of one bag of peanuts?

c) How, in general, would you decide which of the available combinations of candy bars and bags of peanuts to buy?

2) With current technology, suppose a firm is producing 750 screwdrivers daily. Also assume that the least-cost combination of resources in producing those screwdrivers is 15 units of labor, 20 units of land, 4 units of capital, and 3 unit of entrepreneurial ability, selling at prices of $50, $45, $75, and $50, respectively. If the firm can sell these 750 screwdrivers at $2.50 per unit,

a) what is its total revenue?

b) what is its total cost?

c) what is its profit or loss?

d) will it continue to produce screwdrivers?

e) If this firmâs situation is typical for the other makers of screwdrivers, will resources flow toward or away from this product?

3) How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do equilibirium price and quantity rise, fall , or are the answers indeterminate because they depend on the magnitudes of the shifts?

a)Supply decreases and demand is constant. Change in eqilibrium price chnage in eqilibrium quantity

b)Demand decreases and supply is constant.

c)Supply increases and demand is constant.

d)Demand increases and supply increases.

e)Demand decreases and supply decreases.

4)Zeke likes to go to music concerts. The number of times per year that he attends concerts depends on both the price of the concerts as well as Zekeâs income and the cost of other types of entertainmentâin particular, how much it costs to go see a movie instead of attending concerts. The three demand schedules in the $60,000 per year and movies cost $10 each. In scenario D2, Zeke's income is also $60,000 per year, but the price of seeing a movie rises to $12. And in scenario D3, Zeke's income goes up to $80,000 per year, while movies cost $12.

a)Using the data under D1 and D2, calculate the cross-elasticity of Zeke's demand for concerts at all three prices. (To do this, apply the midpoints approach to the cross-elasticity of demand.) Is the cross-elasticity the same at all three prices? Are movies and concerts substitute goods, complementary goods, or independent goods?

b)Using the data under D2 and D3, calculate the income elasticity of Zeke's demand for concerts at all three prices. (To do this, apply the midpoints approach to the income elasticity of demand.) Is the income elasticity the same at all three prices? Are concerts an inferior good?

PRICE	D1	D2	D3
50	10	5	12
40	15	10	25
30	25	15	40

Income 60,000 60,000 80,000

Cost of revenue 10 12 12

5) On the basis of the three individual demand schedules below, and assuming these three people are the only ones in the society, determine (a) the market (a) the market demand schedule on the assumption that the good is a private good and (b) the collective demand schedule on the assumption that the good is a public good.

P	Qd(D1)	Qd(D2)	Qd(d3)
20	0	0	1
19	0	1	2
17	0	2	3
16	0	3	4
15	1	4	5
14	2	5	6
13	3	6	7
12	4	7	8
11	5	8	9
10	6	9	10

periwinklemuskrat632

Please circle the right answer. (two points each)

1. If the price of gasoline is $2.0, and the price elasticity of demand is 0.5, how much will a 10 % reduction in the quantity placed on the market increase the price?

a.There will be 22% increase in the price

b.There will be 5% increase in the price

c.There will be 10 % increase in price

d.There will be 20% increase in price

e. None of the above

2.The consumer's budget line

a. indicates the options from which the consumer can choose

b. identifies the optimal basket for the consumer.

c. identifies the tastes of the consumer

d. ranks the baskets of goods in the order the consumer prefers them

e. shows that the consumer prefers more better than less

3. In the long run, a profit-maximizing firm will choose to exit a market when
a. fixed costs exceed sunk costs.
b. average fixed cost is rising.
c. revenue from production is less than total costs.
d. marginal cost exceeds marginal revenue at the current level of production.

4. When a perfectly competitive firm makes a decision to shut down, it is most likely that
a. price is below the minimum of average variable cost.
b. fixed costs exceed variable costs.
c. average fixed costs are rising.
d. marginal cost is above average variable cost.

5. Which of the following will always cause the demand curve for a product to shift to the right?

a. an increase in income whether the good is a compliment or substitute

b. an increase in the price of the compliment

c. an increase in the price of a substitute

d. an increase in technology

e. a decrease in the price of the good

6. Consumers understandably like lower prices, but they should understand there is a great difference between a lower price produced by the government price ceiling and a lower price that comes about through normal market channels, one benefits the consumer, the other may not.

a. This statement is not true, Consumers are benefited when the government lowers the price and the consumers are benefited when businesses lower the price.

b. This is because when the government forces prices down, there is a shortage and reduction in total surplus. Lower prices through markets don't create shortage but they do benefit consumers.

c. this is because the government forces prices down, there is a surplus and reduction in total surplus. Lower prices through markets don't create surpluses but they do benefit consumers

d. This is because when markets force the prices down, there is a shortage and reduction in total surplus. Lower prices through government actions don't create shortages but they do benefit consumers

e. None of the above

7. How does an increase in the price of a variable input affect the AC and the MC curves?

a. MC shifts to the right and AC increases.

b. MC shifts to the left and AC increases

c. MC shifts to the right and AC does not change

d. MC does not change but AC increases

e. none of the above

8. Which of the following is a characteristic of a perfectly competitive market?
a. Firms are price setters.
b. There are few sellers in the market.
c. Firms can exit and enter the market freely.
d. All of the above are correct.

9. In a perfectly competitive market, the process of entry or exit ends when
a. firms are operating with excess capacity.
b. firms are making zero economic profit.
c. firms experience decreasing marginal revenue.
d. price is equal to marginal cost.

10. The relative price of two goods is shown by:

a. the slope of an indifference curve

b. the slope of the budget line

c. the diminishing marginal rate of substitution

d. the slope of the income-consumption curve

e. none of the above

11. When firms have an incentive to exit a competitive market, their exit will

a. drive down market prices.
b. drive down the profits of existing firms in the market.
c. decrease the number of goods supplied in the market.
d. All of the above are correct.

12. If a perfectly competitive firm currently produces where the price is greater than the marginal cost, it

a. will increase its profits by producing more.
b. will increase its profits by producing less.
c. is making positive economic profits.
d. is making negative economic profits.

13. Does a consumer well being vary along a demand curve?

a. Yes. When price increases, consumers move to a lower indifference curve.

b. Yes. When price increases, consumers move to a higher indifference curve.

c. No. When price increases, consumers stay on the same indifference curve.

d. No. When price increases, the higher price has no effect on budget constraints or indifference curves.

e. None of the above

14. If a competitive firm sets its output such that marginal revenue, marginal cost, and average total cost are equal, economic profit must be:

a. Negative

b. positive

c. Zero

d. Indeterminate from the given information

15. Which of the following is a characteristic of a perfectly competitive market?

a. Firms are price setters.

b. There are few sellers in the market.
c. Firms can exit and enter the market freely.
d. All of the above are correct.

tanchinchilla75

QUESTION 1

Assume there are two basic goods produced in a nation, consumer goods and capital goods. The production possibilities graph for these two goods is bowed out from the origin. This reason for this shape of the graph is because of:

	A.	the other-things-equal assumption.
	B.	the law of increasing opportunity costs.
	C.	diminishing marginal utility.
	D.	present choices and future possibilities.

1 points

QUESTION 2

From an economic perspective, when a student decides to attend another year of college, the student has concluded that the:

	A.	marginal costs of attending college are reduced by the availability of grants and subsidies.
	B.	marginal benefits of attending college have increased because the future is brighter.
	C.	marginal benefits of attending college are greater than the marginal costs.
	D.	marginal costs of attending college have decreased to make college affordable.

1 points

QUESTION 3

A person observes that as consumer prices fall, economic growth increases. The person concludes that fall consumer prices leads to economic growth. This conclusion would be an example of:

	A.	confusing correlation with causation.
	B.	the fallacy of composition.
	C.	trade-offs among economic goals.
	D.	the other-things-equal assumption.

1 points

QUESTION 4

The problem of unlimited wants and limited income is known as

	A.	the scientific method.
	B.	unequal wealth distribution.
	C.	normative economics.
	D.	the economizing problem.

1 points

QUESTION 5

A point outside the production possibilities curve is:

	A.	unattainable without economic growth.
	B.	attainable and the economy is efficient.
	C.	unattainable without inflation.
	D.	attainable, but the economy is inefficient.

1 points

QUESTION 6

Which one of the following would be an example of loaded terminology?

	A.	market forces
	B.	tentative hypothesis
	C.	entrepreneurial functions
	D.	creeping socialism

1 points

QUESTION 7

Suppose there are two economies, Alpha and Beta, both of which have the same production possibilities curves. If Beta devotes more resources to produce investment goods than consumer goods as compared to Alpha, then in the future:

	A.	Alpha will not be able to achieve full employment.
	B.	Beta will not be able to achieve full employment.
	C.	Alpha will experience greater economic growth than Beta.
	D.	Beta will experience greater economic growth than Alpha.

1 points

QUESTION 8

Macroeconomics, as opposed to microeconomics, is concerned with

	A.	individual businesses.
	B.	new computer technology.
	C.	the stock market.
	D.	the economy as a whole.

1 points

QUESTION 9

Which one of the following is an example of a positive economic statement?

	A.	The size of the Federal government should be reduced.
	B.	Midwest states affected by drought should be given more federal disaster aid.
	C.	Education and income are highly correlated.
	D.	The minimum wage for workers should be raised to help low-income workers.

1 points

QUESTION 10

Economics is primarily concerned with

	A.	interactions between the government and market participants.
	B.	how scarce resources are used.
	C.	the production and distribution of capital goods.
	D.	how income is divided among individuals.

1 points

QUESTION 11

The production possibilities table below shows the hypothetical relationship between the production of guns (national defense) and butter (social goods) in an economy.

A B C D E

Guns 0 4 7 9 10

Butter 4 3 2 1 0

If the economy is producing at alternative C, what is the opportunity cost of producing another unit of butter?

	A.	3 units of guns.
	B.	1 units of guns.
	C.	2 units of guns.
	D.	4 units of guns.

1 points

QUESTION 12

Assume that a consumer can buy only two goods X and Y, and has an income of $120. The price of X is $10 and the price of Y is $20. If the consumer spends all of her money on X and Y, which of the following would be a possible combination:

	A.	4X and 2Y
	B.	5X and 3Y
	C.	6X and 3Y
	D.	8X and 1Y

1 points

QUESTION 13

In the production possibilities model of an economy, when there is full employment of resources

		a nation will be operating at an interior point within its production possibilities curve.
		a nation will be operating on the production possibilities curve.
		the production possibilities curve will shift outward to the right.
		the production possibilies curve will shift inward to the left.

1 points

QUESTION 14

In economics the concept that there is "no free lunch" means

	A.	scarce resources were used to produce these "free" goods so there is an opportunity cost to producing them.
	B.	consumers are irrational when they ask for a free lunch unless they can make the case that the free lunch benefits business.
	C.	the marginal cost of the "lunch" is greater than the marginal benefit.
	D.	businesses could not make a profit if they gave away free goods to consumers.

1 points

QUESTION 15

Assume that a consumer can only purchase two goods with her income. A straight-line budget constraint indicates that the opportunity cost of obtaining an additional unit of one good is:

	A.	negative.
	B.	constant.
	C.	increasing.
	D.	decreasing.

carmineferret43

ECON-UA 1 Chapter Notes - Chapter 4: Budget Constraint, Ice Cream Cone, Opportunity Cost

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