Because it is a market economy, in the United States all research and development is done by private business firms

Suppose that government spending increases in the Keynesian macroeconomic model. What will happen to the aggregate demand curve?

Select one: a. The entire aggregate demand curve will shift up. b. The entire aggregate demand curve will shift down. c. The aggregate demand curve will rotate clockwise. d. The aggregate demand curve will not change.

Modern terrorism overturns the central assumption of the Westphalian system that says only

a. democracies can provide a lasting form of power. b. weapons of mass destruction actually maintain peace. c. states have the military force to create serious security threats. d. economic inequality pits private citizens against one another.