In the United States, if a customer at HDFC bank writes a check and the recipient of the check deposits the check in Citibank, then the check is cleared by:

Harold Brown runs a company that sells encyclopedia sets for $250 each. When he employs 10 workers, they can sell 60 sets per week, while only 54 sets are sold when 9 workers are employed. What is the weekly marginal revenue product of the tenth worker?

a. $250. b. $1,250. c. $1,500. d. $15,000.

Which of the following is an example of a transfer payment?

a. wages paid to military personnel b. benefits paid to Social Security recipients c. purchase of aircraft by the Department of Defense d. payments made to a contractor for construction of a highway