A nation’s standard of living depends on its population and labor productivity.

The region that was using mechanized harvesting equipment before the Civil War was

(a) the Northeast. (b) the South. (c) the West. (d) the Far West.

It is _______ that protection makes a nation worse off because it induces the firms in that nation to produce more of the goods that are costly to make and; it is _____ that one nation can gain from international trade only at the expense of other nations.

A. true; true B. false; false C. false; true D. true; false