Reading and understanding check: 1. Answer in words and by means of a graph how each following approach produces a movement or a change in the demand for the product = PIZZA Suppose you are a buyer of the product and to answer you list the theoretical factors that appear in the book. to. a. Increase the price of soda or carbonated drinks. b. There is a lot of publicity about the health benefits of hamburgers. c. Lower the price of pizza at points of sale. d. The income of consumers decreases because of a crisis. e. For next week, consumers expect a drop in the price of pizza.