The following graph shows the production possibilities curve for the economy with only two members, Silvia and Art. Silvia can produce either 50 pounds of beef or 2 computers per week, and Art can produce 100 pounds of beef or 1 computer per week. Both of them work 40 weeks per year.Silvia's opportunity cost of producing one computer is ________ pounds of beef.

A movement downward and to the right along a demand curve is called a(n)

a. increase in demand. b. decrease in demand. c. decrease in quantity demanded. d. increase in quantity demanded.

In the diagram, a shift from AS 1 to AS 2 might be caused by:

A.  stricter government regulations.
B.  an increase in the prices of imported resources.
C.  a decrease in the prices of domestic resources.
D.  an increase in business taxes.