Question 1

Refer to the first image. As the consumer's income increases and the budget line shifts from $$P_1 to$$ $$P_5$$, the consumer's equilibrium moves from $$Q_1 to$$ $$Q_5$$ along the income consumption curve (ICC). What does the upward-sloping ICC in this diagram indicate about Good Y?

Accepted Answer

Good Y is a normal good because its consumption increases as income increases.

Question 2

In the first image, as the budget line shifts outward (from $$P_1 to$$ $$P_5$$), what happens to the consumption of Good X and what does this imply about the nature of Good X?

Accepted Answer

Consumption of Good X increases, implying it is a normal good.

Question 3

Refer to the second image. As the price of Good X decreases (budget line rotates from $$P_1 to$$ $$P_3$$), what happens to the consumer's optimal choice of Good X?

Accepted Answer

The consumer buys more of Good X.

Question 4

In the second image, the movement from $$P_1 to$$ $$P_3$$ represents a change in which economic variable?

Accepted Answer

A change in the price of Good X.

Question 5

Suppose in the first image, the ICC bends backward at higher income levels. What would this imply about Good X at those income levels?

Accepted Answer

Good X becomes an inferior good at higher income levels.

Question 6

In the second image, if the indifference curves are straight lines, what does this imply about the relationship between Good X and Good Y?

Accepted Answer

They are perfect substitutes.

Question 7

If the slope of the budget line in the second image is $$-\frac{P_X}{P_Y}$$, what happens to the slope when the price of Good X increases while the price of Good Y remains constant?

Accepted Answer

The budget line becomes steeper.

Question 8

In the first image, if the ICC is a straight line through the origin, what does this indicate about the income elasticity of demand for both goods?

Accepted Answer

Both goods are normal goods with unit income elasticity.

Question 9

Suppose in the second image, the consumer's optimal bundle moves from $$P_1 to$$ $$P_2 as $$the price of Good X falls. Which effect is being illustrated by this movement?

Accepted Answer

Only the substitution effect.

Question 10

If in the first image, the ICC is upward sloping and convex to the origin, what does this suggest about the consumer's preferences?

Accepted Answer

The consumer prefers to consume more of both goods as income increases.

Question 11

In the second image, if the indifference curves become steeper as we move to the right, what does this indicate about the marginal rate of substitution (MRS) between Good X and Good Y?

Accepted Answer

MRS is increasing as more of Good X is consumed.

Question 12

If in the first image, the ICC is downward sloping, what does this imply about the relationship between Good X and Good Y?

Accepted Answer

They are complements.

Question 13

Suppose in the second image, the consumer's optimal bundle moves from $$P_2 to$$ $$P_3 as $$the price of Good X falls further. What does this movement represent?

Accepted Answer

The total effect of a price change.

Question 14

In the first image, if the ICC is a vertical line, what does this indicate about the consumer's demand for Good X as income changes?

Accepted Answer

Demand for Good X remains constant as income increases.

Microeconomics Study Guide: Indifference Curves, Budget Lines, and Consumer Choice

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