Suppose that there are two goods, 1 and 2, that Jane consumes. Demand functions for these two goods are given as follows: 1 ∗ = 1(g1) , g2 ,) 2 ∗ = 2(g1) , g2 ,) where g1 , g2 , refer prices of the goods and income, respectively. Explain and demonstrate (on the graph) the substitution and income effect for both an increase and decrease in price good 1. Use the notations given in the question.