micro Ch 5: Consumers and Incentives

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If the cross-price elasticity of demand between two products is -3.0, then the two products are:

complements

The current price of wheat is $1.00 per bushel, and the price elasticity of demand for wheat is known to be 0.50. A bad harvest causes the supply of wheat to decrease and as a result the price of wheat rises by 20%. What will be the percentage change in quantity demanded for wheat and will farm revenues rise or fall?

10%, rise

According to the inequality, the marginal utility per dollar spent on good X is less than the marginal utility per dollar spent on good Y. what can a consumer do to increase total utility for a given budget from consumption of goods X and Y?

A consumer can increase total utility for a given budget by consuming more good Y and less good X.

Suppose you have a fixed amount of income and spend equal amounts on two goods, X and Y. The price of good X is Px = $10, and the price of good Y is Py = $5. The marginal utility of X is MUx = 60 utils, and the marginal utility of Y is MUy = 15 utils. How should the consumption of X and Y change, if at all, to increase utility?

Consumption of good X should increase, and consumption of good Y should decrease.

If increasing your consumption of pizza from 3 to 4 slices increases your utility, which of the following must be true?

The marginal utility of the fourth slice of pizza must be positive.

What is the cross-price elasticity of demand for two goods that are unrelated?

Zero

An increase in the price of a substitute for iPads will lead to __________ in the quantity demanded of iPads so the cross-price elasticity of demand will be __________.

an increase, positive

The difference between the highest price a consumer is willing to pay and the amount a consumer actually pays for a good or service is known as:

consumer surplus

The demand curve for an inferior good is __________ sloping while the demand curve for a Giffen good is __________ sloping

downward, upward

If a 20 percent increase in the price of Red Bull energy drinks results in a decrease in quantity demanded of 25 percent, we say the demand for Red Bull is __________ in this range

elastic

The marginal utility from consuming the second ice cream cone is the:

extra satisfaction you get from consuming the second ice cream cone

The more substitutes that exist for a particular product, the __________ the price elasticity of demand.

greater

Along a linear demand curve, the slope __________ while the price elasticity of demand __________.

is constant, changes from one point to another

When you compute a price elasticity of demand the answer is always:

negative

Economists avoid confusion over units in the computation of elasticity by using:

percentage changes

If the total utility increases with additional consumption of a good, then the marginal utility is:

positive

The __________ is a measure of responsiveness of the change in quantity demanded of a good to the change in its price.

price elasticity of demand

The budget line shows:

the affordable combinations of goods and services you can buy with your income

The total utility of consuming two slices of pizza is the:

total satisfaction you get from consuming the two slices of pizza

If a 20 percent increase in the price of Red Bull energy drinks results in a decrease in the quantity demanded of 25 percent, the price elasticity of demand is:

-25/20 = -1.25 the answer is -1.25

The optimal combination of pizza and coke is the one where the:

marginal utility per dollar spent on pizza equals the marginal utility per dollar spent on coke


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