Question 1

What does a price consumption curve show?

Accepted Answer

A price consumption curve displays the collection of optimal consumption bundles a consumer purchases as the price of one good changes, while income, preferences, and the price of other goods remain constant. It connects all equilibrium points resulting from successive price changes, revealing how consumers adjust their purchasing decisions in response to price variations.

Question 2

How does a price change affect a consumer's equilibrium point?

Accepted Answer

When a good's price changes, the budget line rotates, creating a new equilibrium point where the consumer's optimal bundle differs from the previous one. For example, when clothing price falls from twenty to ten dollars per unit, a consumer's equilibrium shifts, allowing purchase of more clothing units while adjusting meal purchases accordingly.

Question 3

What conditions must remain constant when constructing a price consumption curve?

Accepted Answer

When analyzing a price consumption curve, the consumer's income, preferences, and the prices of all other goods must remain constant. Only the price of the specific good being analyzed changes. This isolation ensures the curve accurately reflects how price changes alone influence the consumer's optimal consumption bundle.

Question 4

How is a price consumption curve constructed graphically?

Accepted Answer

A price consumption curve is constructed by plotting each equilibrium point resulting from successive price changes on a graph with two goods on the axes. As price decreases, the budget line rotates outward, generating new equilibrium points. Connecting these equilibrium points traces the price consumption curve.

Question 5

What is the relationship between price consumption curve and demand?

Accepted Answer

The price consumption curve serves as the foundation for deriving the demand curve from price consumption curve. By extracting the price and quantity combinations from each equilibrium point on the price consumption curve, economists construct the individual consumer's demand curve, showing the quantity demanded at each price level.

Question 6

Why does a consumer's optimal bundle change when price changes?

Accepted Answer

When a good's price changes, the budget line rotates, altering the set of affordable combinations. The consumer responds by selecting a new optimal bundle where their marginal rate of substitution equals the new price ratio. This adjustment reflects how price changes modify the relative affordability and attractiveness of different consumption combinations.

Question 7

Can a price consumption curve show consumption patterns for multiple price changes?

Accepted Answer

Yes, a price consumption curve can display consumption patterns across multiple price changes of a single good. Each price change generates a new equilibrium point representing the optimal bundle at that price. By connecting all these points sequentially, the curve illustrates the complete consumption response pattern as price varies.

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