Question. The Setrite Corporation produce chairs. An economist working for the firm predicts that if people’s incomes rise next year, then the demand for our chairs will for our chairs will increase ceteris paribus The accuracy of the economist’s prediction depends on whether the chairs Setrite Produce ?
  1. have few substitutes.
  2. are normal goods
  3. have few complementary goods.
  4. have many complementary goods.