Most food products have low income and price elasticities of demand

On a graph, high correlation between the variable measured along the x-axis and the variable measured along the y-axis

A) means that changes in the variable measured along the x-axis must cause changes in the variable measured along the y-axis. B) means that changes in the variable measured along the y-axis must cause changes in the variable measured along the x-axis. C) means that changes in either variable must cause changes in the other variable. D) does NOT mean that a change in the variable measured along the x-axis must cause a change in the variable measured along the y-axis.

Consumer surplus measures

A) the extra amount that a consumer must pay to obtain a marginal unit of a good or service. B) the excess demand that consumers have when a price ceiling holds prices below their equilibrium. C) the benefit that consumers receive from a good or service beyond what they pay. D) gain or loss to consumers from price fixing.