About what percentage of the growth in real output in the United States from 2001 to 2011 was due to increases in labor productivity?

The SAS curve and the LAS curve

A) intersect at potential GDP. B) are parallel at potential GDP. C) are perpendicular to one another at potential GDP. D) None of the above answers is correct.

Important factors that change the demand for dollars and hence shift the demand curve for dollars include which of the following?

I. interest rates around the world II. the current exchange rate III. the expected future exchange rate A) I and II B) I and III C) II D) I, II, and III