A variable whose value is determined by the model of which it is a part is termed______.
A. constant
B. endogenous
C. exogenous
D. independent
If lighthouses are public goods, then free markets would______.
A. create a lighthouse monopoly
B. provide the optimal number of lighthouses
C. provide more than the optimal number of lighthouses
D. provide less than the optimal number of lighthouses
Which one of the following shows the lowest degree of international, mobility？______.
A. Unskilled labour
B. Financial capital
C. Technical knowledge
D. Management
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