When the marginal product of an additional worker is less than the marginal product of the previous worker, there are ________ returns to labor

The best explanation for the late 1994/early 1995 collapse of the Mexican peso and stock market is

(a) free movement of capital internationally is destabilizing for a developing country. (b) portfolio investments were camouflaging overvalued exchange rates. (c) debt for equity swaps had created imbalances in the ownership structure of the economy. (d) the potential benefits of NAFTA had been oversold.

In goods market equilibrium in an open economy,

A) the desired amount of exports must equal the desired amount of imports. B) the desired amount of exports must equal the desired amount of imports less the amount lent abroad. C) the desired amount of national saving must equal the desired amount of domestic investment. D) the desired amount of national saving must equal the desired amount of domestic investment plus the amount lent abroad.