The United States is one of the most marketized economies in the world

All of the following are examples of negative externalities except one. Which is the exception?

a. Water pollution. b. Your roommate going on a diet. c. Second-hand smoke. d. Loud conversation in the workplace.

Which of the following is true?

a. Inflation and unemployment rates can both decrease in the short run in response to negative supply shocks. b. Inflation and unemployment rates cannot both increase or both decrease in the short run in response to changes in aggregate demand. c. Inflation and unemployment rates can both increase in the short run in response to positive supply shocks. d. All of the above are true.