What system drove european nations to compete for control of limited worldwide wealth? a) mercantilism b) industrialization c) socialism d) capitalism

The correct answer is A) are, as of now, unclear and require more careful study.

Research conducted by Edward Prescott of Arizona State University and Edward Glaeser of Harvard University along with Bruce Sacerdote of Dartmouth College indicates that the effects of supply-side policies are, as of now, unclear and require more careful study.

When we are talking about economics, supply-side policies are thought to increase Aggregate Supply. They improve the productive capacities of an economy at the same time these are enhancing the quality of the factors of production that are land, labor, capital, and entrepreneurship.  But as academic Professors, Prescott  Glaeser, and  Sacerdote have concluded, supply-side policies are not easy to implement and its effect take time.