Investment is a unstable element of aggregate demand because it depends heavily on ?
		A.	Government policy
B.	Expectations
C.	National income
D.	Historic trends
		A.	Government policy
B.	Expectations
C.	National income
D.	Historic trends
		A.	inequality is a motivating force for people to rise in the stratification system
B.	Everyone is talented equally
C.	Marxism tries to explain all social problems
D.	Democracy delivers equality better than Marxism does
		A. greater than average cost, greater than average cost
B. less than average cost, greater than average cost
C. less than average cost, less than average cost
D. greater than average cost, less than average cost
		A.	the American Revolution
B.	the French Revolution
C.	the Russian Revolution
D.	the Industrial Revolution
		A.	direct exporting
B.	indirect exporting
C.	licensing
D.	joint venturing
		A. modern sector and traditional sector
B. town and country
C. men and women
D. rich people and poor people
		A.	vision in depth
B.	opposable thumb
C.	erect walking posture
D.	all of the above