Answer the following questions and use examples, justified economic concepts, and ideas. What is the meaning of a derived demand, and how does this

Answer the following questions and use examples, justified economic concepts, and ideas.

What is the meaning of a derived demand, and how does this concept help to determine the demand for labor?

What are some of the factors that determine the supply of labor in a market, and what significant factors have changed the supply of labor over the last twenty years?

How does a firm determine its prices and the quantity of labor required in the resource market during a specific period?

Why do income inequalities exist, how are they measured, and how has it changed from 1980 to the present?

What is the role of the U.S. government, in terms of dealing with the problem of income inequalities, and what are the arguments, for and against, government involvement in this area?

Why do nations trade, and what is meant by the concept of "Comparative Advantage"? 

Could a nation be better off economically, if it practiced an isolation policy?

In the U.S., what are the problems associated with having a negative trade balance, and what can be done to correct the imbalance?

How are exchange rates determined? 

What is the significance of currency devaluations to the home country, and to other countries?