Subject: Microeconomics - Consumer Theory - Utility Function

Calculate and interpret the MSRs (Marginal Substitution Rate) for the following utility functions:

a)U(x,y)=x1/8y7/8 (Cobb-Douglas Function)

b) U(x, y) = min {3x, 5y} (Perfect Complementaries Goods)

c) U(x, y) = 9x + 2y (Perfect Substitutes Goods)

d) U(x, y) = 5x (Y is neutral good)