Figure 1 are the demand curves for good X, which is an inferior good. Price 8 Demand, D. Quantity 0 Refer to figure 1. explains a movement from D2 to D1, and explains a movement from A to B. 1. A decrease in the taste of X; a drop in the price of a complement to X. II. An increase in population; a drop in the price of X. III. An increase in income; a drop in the price of X. IV. An increase in the expected price of X; a drop in the expected price of X