Economists Do Not Use the Laboratory Methods of the Physical

Multiple Choice

Economists do not use the laboratory methods of the physical sciences because:

A) economic problems are more complex than those of the physical sciences.
B) the scarce resources that are of concern to economists cannot be found in a laboratory.
C) it is impossible to control all the variables that influence the results of the experiment.
D) economic theories cannot be applied to individual situations, only to problems faced by the entire country.