| | Selected Answers in Chapter 9 |
 | | So the benefit to consumers of producing one more unit of output (the marginal benefit) is larger than the cost of producing that output (the marginal cost), meaning that it would be economically efficient to produce that an unit of output. |
 | | Consumer surplus is the area of a triangle with height $20 (since the price is $10 and the demand curve intercepts the Y axis at a price of $30) and base 20, so consumer surplus is $200. |
 | | Consumer surplus is the area of a triangle with height $20 (since the price is $10 and the demand curve intercepts the Y axis at a price of $30) and base 200, so consumer surplus is $2000. |
| www.econ.rochester.edu /eco108/ch9/ans9.htm (2314 words) |