A not-for-profit organization conducts several workshops to prevent drug addiction among teenagers. This is an example of ________

Mr. Calhoun owned a worn-out piece of farmland for growing cotton, which he had been unable to rent for years. Suddenly he was getting offers from cotton farmers to lease his land. What is the most likely explanation of this?

a. The price of cotton went down. b. The physical productivity of the land went up. c. Taxes on land went up. d. The price of cotton went up.

The justification for occupational licensing laws is that they protect the public from incompetent practitioners (for example, lawyers and medical doctors), but the laws also result in

A) higher prices and restrictions on the number of people who can enter the professions affected by the laws. B) economies of scale. C) ownership of a key input. D) an increase in the amount of output required to achieve minimum efficient scale.