Explore the basics of deflation, including the definition of deflation, how the CPI changes when there is deflation, and why economists tend to be concerned when deflation occurs. Created by Sal Khan.

One of the biggest worries associated with deflation is a deflationary spiral, in which low unemployment and a decreasing price level leads to lower unemployment and an even lower price level. Created by Sal Khan.

How you can have deflation even if the money supply increases. Created by Sal Khan.

Dehydration synthesis (condensation reaction) between sugar molecules. Monosaccharides, disaccharides, and polysaccharides. Formation of maltose from glucose monomers.

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. Created by Sal Khan.

Why do people hold wealth in the form of money, rather than in some other interest-earning asset? Learn about the demand for money in this video.

A real-world example of the concepts behind the AD-AS model is the inflation that the United States experienced in the late 1960s. In this video, we break down some of the events going on at the time and use the AD-AS model to see if our predictions using this model match what really happened. Created by Sal Khan.

A close reading of the beginnings of the Declaration of Independence to identify ideas of natural rights, social contract, limited government and popular sovereignty in the text.

Learn how the Preamble to the US Constitution reflects the democratic ideals of the Framers.

Ideas of natural rights, social contract, popular sovereignty, limited government and republicanism and their influence on the foundation of the United States of America.

How to account for things when you own the building instead of renting it. Created by Sal Khan.

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. When the price of a good decreases, the "bang per buck" on that good increases, which incentivizes consuming more of it. In this video, we derive the individual's demand curve for a good by tweaking the marginal utility per dollar spent. Created by Sal Khan.

Deriving formula for centripetal acceleration in terms of angular velocity. using linear speed formula.

Showing how a change in government spending can lead to a new equilibrium. Created by Sal Khan.

A framework for thinking about how many detectable civilizations are out there. Created by Sal Khan.

Why do we even care about the Drake Equation. Thinking about the fraction of a planet's life when a civilization might be detectable. Created by Sal Khan.