3. The market for electronic textbooks Consider the market for new economics textbooks. The following graph shows the demand curve for new textbooks. Suppose that the
publisher issues a new edition every four years and that a printed copy of the new 2018 textbook sells for a retail price of $140.
On the following graph, use the black point (cross symbol) to indicate the point on the demand curve at $140. (Note: Dashed drop lines will
automatically extend to both axes.) Then answer the question that follows.
?
The market for new economics textbooks (Print only)
200
180
160
Demand
140
+
per copy)
120