Economics College Prep - AP Video Lectures
Supply, Demand and Market Equilibrium
https://www.khanacademy.org/science/microeconomics/supply-demand-equilibrium
Law of Demand
https://www.khanacademy.org/science/microeconomics/supply-demand-equilibrium/demand-curve-tutorial/v/law-of-demand
Law of Supply
https://www.khanacademy.org/science/microeconomics/supply-demand-equilibrium/supply-curve-tutorial/v/law-of-supply
Market Equilibrium
https://www.khanacademy.org/science/microeconomics/supply-demand-equilibrium/market-equilibrium-tutorial/v/market-equilibrium