You want to run a difference-in-difference experiment with a price increase for the bacon cheeseburger item on your menu. If you are worried about "leakage" with your control group, a good comparison menu item would be

An economy in which people exchange goods and services in a market is called a

A) command economy. B) socialist economy. C) market economy. D) centrally planned economy.

National debt decreases in a given year when a country has

A) a budget deficit. B) a balanced budget. C) a budget supplement. D) a budget surplus. E) no discretionary fiscal policy.