In the above figure, over the price range P1P2, demand is

Current offers to purchase or sell scarce goods take account of the wants of future generations

A) if government intervenes to give the future a current voice. B) if people are able to predict future prices. C) only if people are concerned for the welfare of others yet unborn. D) only rarely because people are predominantly selfish.

The more complicated a task, the greater the ability to economize on ________ through specialization and centralized control

a. transaction costs b. marginal cost c. sunk cost d. fixed cost