Consider the following questions:

1. What factors determine supply and demand in a given market?
2. What actors play a role in economic shifts?

Read the following sections from the Principles of Macroeconomics book available from Saylor Academy:

1. Read Chapter 3, to gain an understanding of the factors that shift the demand and supply curves.
2. Read Chapter 4, to learn how to apply the model of supply and demand to various market situations.