Jennifer divides her income between coffee and croissants. An early frost in Brazil causes a large increase in the price of coffee in Australia.

a Show the effect of the frost on Jennifer’s budget constraint.

b Show the effect of the frost on Jennifer’s optimum consumption bundle assuming that the substitution effect outweighs the income effect for croissants.

c Show the effect of the frost on Jennifer’s optimum consumption bundle assuming that the income effect outweighs the substitution effect for croissants.