(problem 13). margo's marginal utility of one dance lesson is 100 utils per lesson. her marginal utility of a new pair of dance shoes is 300 utils per pair. the price of a dance lesson is $50 per lesson. she currently spends all her income, and she buys her optimal consumption bundle. what is the price of a pair of dance shoes?

Since Margo purchase her optimal consumption bundle, the marginal utility per dollar consumed on dance lessons must be equivalent to the marginal utility per dollar paid on dance shoes. The marginal utility per dollar spent on dance lessons is 100 utils per lesson, where $50 per lesson is equivalent to 2 utils per dollar. The marginal utility per dollar expended on dance shoes therefore has to equal 2 utils per dollar. Since the marginal utility of a pair of dance shoes cost 300 utils per pair, the value of a pair of shoes should be $150 per pair, so that 300 utils per pair/$150 per pair is equal to: 2 utils per dollar.

answer; (d) i believe that the correct answer is ; /// a new invention lowers the cost of production;

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