By 2009, the percentage of the U.S. labor force employed in agriculture was:

Suppose that govt spending on defense rises by $50 billion. What happens to the AD curve?

A. It shifts right by $50 billion at each price level. B. It shifts right by more than $50 billion at each price level. C. It shifts right by less than $50 billion at each price level. D. The aggregate demand curve does not shift; the aggregate supply curve shifts right by $50 billion at each price level.

In calculating multifactor productivity growth, the elasticity of output to changes in capital (given as "b" in the textbook) is assumed to be

A) one minus the population growth rate. B) the depreciation rate. C) the share of capital income in GDP.