Which economist developed the concept of the invisible hand?

Assume an individual is considering opening a new car dealership in a medium-sized metropolitan area (population = 200,000 )

Provide a list of economic variables you would recommend that the person consider in making his decision whether to open the business, and explain your rationale for including each variable.

In the long run, monetary policy can

a. change the form of inflation b. change the type of unemployment c. change the level of unemployment d. stop the flow of currency abroad e. change the rate of inflation