There were no economists until the 1700s. Why? Why was there no need for economists until that time?

How did Adam Smith define the invisible hand concept? What was its purpose?

How did the theories of Malthus result in economics becoming know as the dismal science?

What did Ricardo say was the relationship between rent and the price of grain?

What did the change in emphasis from distribution to production mean?

In Keynesian theory, what effect does the level of spending in an economy have? How doe Keynes explain the fact that an economy can get suck in depression, no matter how low the interest rate is?

What determines value in the Marxian framework? Why is this significant?

Explain how the Single Tax was supposed to work.