What Is the Question of the Chapter? Suppose we observe a collection of a consumer's choices, can we discover his/her preference? Is this possible at all?fso, under what conditions is this possible? (This is the reverse question of finding the optimal choice)
What Do We Do in This Chapter? We conduct comparative statics analysis of ordinary demand functions the study of how ordinary demands*(p,,P2,y) and x2*(p1,p2,y) change as prices1,P2 and income y change. Theoretically, nothing new