The marginal cost to a grocer of selling avocados, which would have to be thrown away if they are not sold immediately, is approximately

The gap between average total cost and average variable cost:

a. is constant at all ranges of output. b. is high at high levels of production. c. declines as output expands. d. depends on the production technology.

In a traditional economy, decisions about what to produce, how to produce, and who should get society's output are made by

a. the market b. the government c. repeating what was done in the past d. business firms e. nonprofit firms