Change in Demand What factors could cause people to be more or less willing to purchase a product?
SPITE S ubstitutes P rice of related goods (compliments) I ncome T aste E xpectation
Substitutes A product that can be used in place of another product. Pepsi and Coke Big Mac and Whopper
Price of related goods Two goods that compliment one another Peanut butter and Jelly
Income The more money you have the more money you spend. The less money you have the less you spend. Taxes
Taste Fads Styles Trends
Expectation Buying season tickets to Chicago’s only major league baseball team because you think next year they will be in the world series. Go WhiteSox!!!!!!!
What changes demand? SPITE!