Khan Academy
Khan Academy: Demand and the Law of Demand
Practice what you have learned about the law of demand, the income and substitution effect, and changes in demand in this seven-question exercise.
Khan Academy
Khan Academy: Markets, Property Rights, and the Law of Demand
Practice what you have learned so far in this lesson. Topics include the role of property rights in markets, the income effect, and the substitution effect.
University of Nebraska Omaha
Ec Ed Web: Analyzing the Demand Curve
Lists the determinants of demand for a product and service. The site is useful for students wishing to look further into the causes of demands. Graphs and summaries are included to aid research.