For each of the following pairs of goods, which has the higher price elasticity of demand? (a)

Question:

For each of the following pairs of goods, which has the higher price elasticity of demand?
(a) Airline travel in the short run or airline travel in the long run
(b) Television sets or Sony television sets
(c) Cars or Fords
(d) Telephones or AT&T telephones;
(e) Popcorn or Orville Redenbacher’s popcorn