Question

Joanna is deciding between consuming Good X and Good Y. At her current level of consumption, her marginal utility per dollar for Good X is greater than the marginal utility per dollar for Good Y. To achieve the consumer optimum, Joanna needs to a. consume more of Good Y until the marginal utility per dollar for Good Y is greater than the marginal utility for Good X. b. consume more of Good X until the marginal utility per dollar for Good Y is greater than the marginal utility for Good X. c. consume more of both Good X and Good Y until the marginal utility per dollar for Good Y is greater than the marginal utility for Good X. d. consume more of Good X or less of Good Y until the marginal utility per dollar for Good X and Good Y is equal. e. continue at her current level of consumption.

Answer 1

Answer:

D) consume more of Good X or less of Good Y until the marginal utility per dollar for Good X and Good Y is equal.

Explanation:

Since Joanna's marginal utility per dollar is higher for good X than per good Y, then she must consume a combination of both goods until their marginal utility per dollar is equal.

Since marginal utility is diminishing, if she reduces her consumption of good Y, maybe it will increase and match X's. Or she can choose to consume more X until its marginal utility diminishes and matches Y's.