Suppose the Economy Experiences a Greater Degree of Specialization

Multiple Choice

Suppose the economy experiences a greater degree of specialization.Which of the following is likely to occur?  

A)  It will be easier to discover a double coincidence of wants. 
B)  The establishment of a barter system will be more feasible. 
C)  The development of a monetary exchange will be less likely. 
D)  It will be more difficult to negotiate an exchange rate between all pairs of goods.