Specialization of labor occurs when work is assigned based on the:
a. demands of the labor union.
b. skills of the workers

In real life, people's behavior is constrained by:

A. laws of nature. B. costs of various actions. C. legislated rules of society. D. All of these are rules that constrain people's behavior.

A significant advantage to being a member of a trade bloc is

A. reduced or eliminated tariffs among member countries. B. reduced tariff rates only for the largest member countries. C. higher tariff collections from member countries. D. None of these; there is no economic advantage to a trade bloc.