Supply
NewEcon Practice: Supply and Demand
This tool from Marginal Revolution University will ask students 10 questions about whether an event causes a shift in the demand curve or a shift in the supply curve. This tool is perfect for learning supply and demand, or for reviewing if you've already covered the topic!
Exploring Equilibrium
In this video, we’ll review equilibrium in the adjustment process, showing that the equilibrium price is the only stable price. Then we’ll take a look at equilibrium quantity, where quantity demanded is equal to quantity supplied, and how this plays out in a free market economy that seeks to maximize gains from trade.