Efficiency is another word for equity.

Which of the following is an example of a negative externality?

a. Planting flowers in your front yard. b. Talking loudly when others are trying to study economics. c. People donating money to charity. d. The price of bread increases. e. Accidentally pushing someone as you try to cross the street.

All of following are commonly considered to be common property EXCEPT

A) spotted owls in the wild. B) fish in an ocean. C) pigs raised in a farm. D) wild salmon in a river.