If a racial group exhibits lower scores on IQ tests, this is evidence of their reduced intelligence

As more and more firms have acquired fax machines, the fax machine has become a standard means of business communication. The increase in demand for fax machines for business communication:

A) is an example of the snob effect. B) proves that the fax machine is an inferior good. C) proves that the fax machine is a luxury good. D) is an example of a positive network externality. E) is an example of a negative network externality.

The aims of mercantilists do not include

a. achieving power and wealth for the state. b. achieving political and economic unity. c. keeping artisans in the home country. d. All of the above were aims of the mercantilists.