A nation's real GDP was $250 billion in 2013 and $265 billion in 2014. Its population was 120 million in 2013 and 125 million in 2014. What is its real GDP per capita in 2014?

Assume your roommate is very untidy. According to campus policy, you have a right to live in an uncluttered apartment. Suppose she/he gets a $200 benefit from being untidy but imposes a $100 cost on you. The Coase Theorem would suggest an efficient solution can be reached where: a. you continue to live with your messy roommate until you are able to make other living arrangements elsewhere. b

your roommate stops her/his messy habits or you force her/him to move out. c. you pay your roommate at least $100 but no more than $200 to clean up after (her)himself. d. your roommate pays you at least $100 but no more than $200 for the right to be untidy (or to have you clean up after her/him).

During the last two decades, most of the surplus generated by the Social Security system was

a. used to finance current government expenditures. b. invested in government bonds that will make it possible for the federal government to pay future retirement benefits without an increase in federal taxes. c. used to pay down the national debt. d. invested in bonds offered by foreign governments and businesses that will provide a stream of future income for the finance of retirement benefits.