Question

Alexandra is maximizing her utility over goods x and y subject to her budget constraint. Her preferences are smooth (maximizers are always interior). At her optimal consumption bundle, her MRS of goof y for good x is equal to 1. The price of good x is $4. What is the price of good y?

Answer 1

Answer: $4

Explanation: The optimization ratio between good x and y is the same .

In other words .Alexandra is maximizing her utility over goods x and y subject to her budget constraint at constant ratio . This is from the fact that At her optimal consumption bundle, her MRS of goof y for good x is equal to 1.