Who would be least inclined to engage in "feel good" foreign projects, which contribute minimal benefits to the poor but look impressive to outside observers?

A ten percent increase in total factor productivity A will increase ________

A) the marginal product of capital (MPK) by ten percent B) the marginal product of labor (MPL) by ten percent C) output by ten percent D) all of the above E) none of the above

The price of a phone call at a pay phone was 5 cents in 1950 and the price of a first-class stamp was 3 cents. In 2014, the pay phone costs 50 cents for a call and a first-class stamp costs 49 cents. We know that

A) both the nominal and the relative price of phone calls increased from 1950 to 2014. B) both the nominal prices of phone calls and first-class stamps increased from 1950 to 2014, but the relative price of stamps increased and the relative price of phone calls decreased from 1950 to 2014. C) all prices increased from 1950 to 2014: Nominal prices of phone calls, first-class stamps, and the relative prices of phone calls and first-class stamps. D) both the nominal prices of phone calls and first-class stamps increased from 1950 to 2014, but we can't tell if the relative prices increased or decreased without more information.