Khan Academy
Khan Academy: Aggregate Demand and Aggregate Supply Curves
This article explains how the concepts of supply and demand can be applied to the economy as a whole. Includes examples of an aggregate demand curve and an aggregate supply curve, and review questions at the end.
Khan Academy
Khan Academy: Economic Efficiency
Read about consumer surplus, producer surplus, and deadweight loss. Did you know that demand and supply diagrams can help us understand more than supply and demand curves and equilibrium? They can also help us understand economic...
Khan Academy
Khan Academy: Law of Demand
If the price of something goes up, people are going to buy less of it.
Khan Academy
Khan Academy: Shifts in Aggregate Demand
Aggregate demand is made up of four components: consumption spending, investment spending, government spending, and spending on exports minus imports. Increasing or decreasing any of these components create shifts the AD curve.
Khan Academy
Khan Academy: Market Equilibrium
The actual price you see in the world is a balancing act between supply and demand.
Khan Academy
Khan Academy: Shifts in Aggregate Supply
If either the aggregate supply or aggregate demand curve shifts in the aggregate demand/aggregate supply-AD/A-model, the original equilibrium in the AD/AS diagram will shift to a new equilibrium. Increases and decreased in the price of...
Curated OER
Market Demand for Goods and Services
This is an easy to understand site that presents the law of demand, changes in quantity demanded, and the factors that cause a demand curve to shift. It also discusses how inferior goods and normal goods respond to changes in demand.
Tutor2u
Tutor2u: Theory of Supply
This site provides a simple definition of market supply and the supply curve. Illustrates concept with a graph.
Curated OER
Demand Curve, Mr, and Ar Curves Under Alternative Output Markets
This site provides a good analysis of the concepts of marginal product, marginal revenue product, marginal costs, and how a monopsonist determines wages and quantity of labor hired.
Khan Academy
Khan Academy: Law of Supply
If the price of something goes up, companies are willing (and able) to produce more of it.