If a price-discriminating monopolist sells the same product in two markets but charges a higher price in market X and a lower price in market Y, the pricing difference indicates that demand is:

Under a market system of resource allocation, the most important limitations on individual freedom of action are imposed by

a. tradition b. the government c. the scarcity of resources d. the stagnation of the economy e. the rigidity of the economy's rules

If nominal GDP rises from one year to the next, then

a. the economy must be producing a larger output of goods and services. b. prices at which goods and services are sold must be higher. c. either output, or the general level of prices, or both must be rising. d. employment and productivity must be rising.