Refer to Figure 10.1. The dominant strategy for ________ is to not contribute

Suppose the market for potatoes can be expressed as follows:

Supply: QS = -20 + 10p Demand: QD = 400 - 20p If the government sets a maximum price of $10 per unit, what will be the quantity demanded and quantity supplied?

Between 1945 and 1980, the national debt

a. as a percentage of GDP increased b. as a percentage of GDP decreased c. as a percentage of GDP remained relatively constant d. in dollar terms declined e. in dollar terms remained constant