Seinfeld clip [4:44] from an episode that teaches us about the economic concept of demand, featuring Jerry and Elaine's crusade as they begin to get fat from the yogurt they are eating.

Are you ready to look a bit deeper at why elasticity changes despite having a linear demand curve? This video explains how the quantity of demand of good or service changes when it price changes. [6:00]

The video demonstrates first degree price discrimination using a graph with a fictional business. Learn how businesses try to optimize economic profit by charging different consumers different amounts. [6:00]

This video lesson from Khan Academy is intended for students who are taking the AP Microeconomics course or a college microeconomics class. Explore the relationship between total revenue and elasticity in this video.

This video lesson from Khan Academy is intended for students who are taking a microeconomics course. This lesson serves as an introduction to price elasticity of demand.

This video lesson from Khan Academy is intended for students who are taking the AP Macroeconomics course. Students will examine the two extremes of elasticity: perfectly elastic and perfectly in elastic demand. The extremes can help...

Looking a bit deeper at why elasticity changes despite having a linear demand curve. This resource is designed as a review for the AP Microeconomics Test or a college-level microeconomics course.

In this video lesson, explore a simple way to calculate the price elasticity of demand, how to interpret that calculation, and how price elasticity of demand varies along a demand curve. This resource is designed as a review for the AP...

This video lesson explains why we calculate percent changes in a strange way when calculating elasticities. This resource is designed as a review for the AP Microeconomics Test or a college-level microeconomics course.

There are several factors that affect how elastic (or inelastic) the price elasticity of demand is, such as the availability of substitutes, the timeframe, the share of income, whether a good is a luxury vs. a necessity, and how narrowly...

Walk through the logic of determining what kind of good has the most elastic demand in this video. This resource is designed as a review for the AP Microeconomics Test or a college-level microeconomics course.

This video lesson provides a case of price elasticity of demand, s demand curve with a constant unit elasticity. Explore what such a demand curve would look like in this video.

In this video lesson from Khan Academy, students will explore how changes in a few factors, including income, population, and consumer preferences, affect the demand curve. This resource is designed as a review for the AP Macroeconomics...

In this video lesson from Khan Academy, students will explore what happens when both supply and demand are simultaneously changing. This resource is designed as a review for the AP Macroeconomics Test or a college-level macroeconomics...

Explore the role of buyers' expectations as a determinant of demand in this video lesson from Khan Academy. This resource is designed as a review for the AP Macroeconomics Test or a college-level macroeconomics course.

This video lesson from Khan Academy explains the differences between a change in the quantity demanded for a good (which causes a movement along a demand curve) and the change in a good's demand (which causes the entire demand curve to...

This video explains how the price of one good impacts the quantity demanded of another. [11:19]

To get a better intuition about how much a consumer values a good in a market, we think of demand as a marginal benefit curve. In this video, we look at the demand curve from a marginal benefit framework. [5:53]

One of the biggest worries associated with deflation is a deflationary spiral, in which low unemployment and a decreasing price level lead to lower unemployment and an even lower price level. [3:50]

Where does a buyer's demand curve come from? A rational buyer wants to get as much 'bang per buck' from their consumption as possible. In economics, that's called marginal utility per dollar spent. In this video, we derive the...