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1. Assume Joseph spends his entire income on X and Y, and his indifference curves have the usual convex shape. If Joseph maximizes his utility, then:

a. he spends his entire available income.

b. there are other bundles that are preferred at the current price ratio

c. the slope of his indifference curve is greater than the slope of his budget line

d. the slope of his indifference curve is smaller than the slope of his budget line

2. The long-run price elasticity of demand for a product is generally___the short-run elasticity for the same product.

a. lower than

b. equal to

c. higher than

d. not comparable to

3. Assume the demand function for skincare products is given by Q = 1,000-20P+5i. if P=$25 and i=$1,000 currently, then:

a. skincare products are a normal good

b. the elasticity of demand is equal to 11

c. skincare products are interior

d. the price is too high

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Joshua Stredder
Joshua StredderLv10
28 Sep 2019

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Related questions

When deciding consumption levels of more than one good, the utility-maximizing rule states that you are maximizing utility when

the marginal utility o two goods are equal

the marginal utility of two goods are zero

the ratio of marginal utility to price of two goods is zero

the ratio of marginal utility to price for the two goods are equal

10 points

QUESTION 2

My brother says the law of diminishing marginal utility is nonsense because he is way happier after his sixth beer than after his first one. Pick the best response.

He has a point, maybe this is something behavioral economists should take a look at.

True, but marginal utility refers only to the utility gained (or lost) by drinking that last beer, not to his total utility

There are always exceptions, but in general this law will hold.

True, but the law of diminishing marginal utility is really just saying that eventually he will prefer a glass of wine to another beer.

10 points

QUESTION 3

Frank spends $75 on 10 magazines and 25 newspapers. The magazines cost $5 each and the newspapers cost $2.50 each. Suppose that his marginal utility from the final magazine is 10 utils while his marginal utility from the final newspaper is also 10 utils. According to the utility-maximizing rule, Frank should:

Reallocate spending from magazines to newspapers

Reallocate spending from newspapers to magazines

Be satisfied because he is already maximizing his total utility

None of the above

10 points

QUESTION 4

Marginal utility can be:

Positive, negative, or zero

Decreasing but not negative

Positive or negative, but not zero

Positive, but not negative

10 points

QUESTION 5

In economics, a product provides utility if it:

is useful

violates the law of demand

takes more and more resources to produce successive units of it

satisfies consumer wants

Which of the following is true of an indifference curve?

Along an indifference curve utility is fixed.

If a consumer is rational then indifference curves may cross.

Indifference curves further from the origin are associated with lower levels of utility than those that are closer to the origin.

Because they are indifference curves, microeconomics students should be indifferent towards them.

Respond True or False to the following, and explain why each answer is True or False:

a. If two goods x and y are perfect complements, then if the price of x falls, the entire change in demand for x is due to the income effect.

b. A consumer has the utility function given by U=min{x1,2x2}. If good 2, has a price of zero, the consumer will always strictly prefer more of good 2 to less.

c. Ivan spends his entire income on two goods. One of them is a Giffen good. If the price of the Giffen good rises, demand for the other good must fall.

d. Jimmy's utility function is U(a,b) = ab, where a is his consumption of apples and b is his consumption of bananas. If prices and income change in such a way that Jimmy's old consumption bundle lies on his new budget line, then Jimmy will not change his consumption bundle.

True or False. If False explain why it's false.

1. If all prices are doubled an money income is the left the same, the budget set does not change because the relative prices do not change.

2. A decrease in income pivots the budget line around the bundle initially consumed.

3. If preferences are well-behaved, then for any commodity bundle (x1,x2), the set of commodity bundles that are worse than (x1,x2) is a convex set.

4. The marginal rate of substitution measures the distance betwee one indifference curve and the next one.

5. If someone has the utility function U= 2min(x, y), then x and y are perfect complements for that person.

6. At the boundary optimum, a consumers indifference curve must be tangent to her budget line.

7. If two goods are substitutes, then an increase in the price of one of them will increase the demand for the other.

8. An Engel curve is a demand curve with the vertical and horizontal axes reversed.

9. An inferior good is less durable than a normal good.

10. When other variables are held fixed, the demand for a Giffen good rises when income increase.

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