The prices of both goods X and Y increase by 8%. This change in price results in a 4% decrease in the quantity demanded of good X, and a 25% decrease in the quantity demanded of good Y. This difference may be because....
a) good X is an inferior good, and good Y is a normal good.
b) good Y is an essential good, while good X is an inferior good.
c) good X is an essential good, while good Y is a luxury good.
d) good X is a luxury good, while good Y is an essential good.
c) good X is an essential good, while good Y is a luxury good
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