An increase in available resources will tend to cause a society's production possibilities curve to shift inward

A positive externality causes

A) the marginal social benefit to be less than the marginal private cost of the last unit produced. B) the marginal private benefit to exceed the marginal social cost of the last unit produced. C) the marginal social benefit to exceed the marginal private cost of the last unit produced. D) the marginal social benefit to be equal to the marginal private cost of the last unit produced.

Reliable information is

a. costly for consumers, but not for producers b. costly for producers and consumers c. freely available d. costly for producers, but not for consumers e. not relevant to economic decision making