The relative scarcity of water in desert societies causes the marginal utility of the last unit consumed to be

Which of the following should not be considered as an opportunity cost of attending college?

a. Expenses that are the same whether or not you attend college b. Lost salary c. Business lunches d. Interest that could have been earned on your money had you put the money into a savings account, rather than spent it on tuition e. Opportunities sacrificed in the decision to attend college

If the budget deficit were reduced,

a. interest rates and investment would increase. b. interest rates would increase and investment would decrease. c. interest rates and investment would decrease. d. interest rates would decrease and investment would increase.