If an individual consumes more of Good X when his/her income doubles, we can infer that

A. Good X is an inferior good.
B. the demand for Good X is perfectly inelastic.
C. the individual is highly sensitive to changes in the price of Good X.
D. Good X is a normal good.

Answer: D

Economics

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The long-run Phillips curve:

a. is horizontal. b. is the same as the short-run Phillips curve. c. displays a positive relationship rather than an inverse relationship. d. is exponential. e. is vertical.

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