Complete the sentences with the words given below:
1. Prices perform two important economic functions: they ration . . . . . ., and they motivate . . . .
2. . . . will offer more of a product at a higher price and less at a lower price.
3. Prices . . . producers to increase or decrease their production.
4. . . . . . . is the price paid for borrowing money for a period of time.
5. Supply and demand . . . prices in a market economy.
a) determine; b) sellers; c) encourage; d) interest rate; e) scare resources, production.