Which of the following is a simultaneous decision game?

If there is employment discrimination against minorities, this will cause the

a. supply of their services to increase, and their wages to fall. b. demand for their services to decline, and their wages to fall. c. supply of their services to decline, and their wages to rise. d. demand for their services to decline, and their wages to rise.

How do economists calculate consumer surplus for the entire market?

a. by subtracting the consumer surplus of all buyers from the producer surplus of all producers b. by adding individual consumer surpluses for all consumers who have purchased the good c. by subtracting the market price at the beginning of the year from the market price at the end of the year d. by multiplying the market price of the good by the sales tax rate applied to the good