The idea of a currency union was initially proposed by:

Explain how a model can be useful even if it is not realistic

What will be an ideal response?

Because resources tend to be specialized, increased production of military goods tends to

a. decrease the opportunity cost of more military goods. b. increase the opportunity cost of more non-military goods. c. increase the opportunity cost of more military goods. d. change the position of the production possibilities curve. e. alter the slope of the production possibilities curve.