Price controls have the potential to reduce total surplus. In this video we step through some details on how one kind of regulation, a price ceiling, can reduce economic efficiency. A real world example of a price ceiling is rent control, which some cities have experimented with as a way to control rising housing costs. Created by Sal Khan.

Renting vs. buying a house is a major consideration for many people. In this video we break down the considerations that go into calculating whether renting a house or buying a house is the best choice for someone. Created by Sal Khan.

We explore a more detailed model, including a downloadable spreadsheet, that factors many of the considerations needed when deciding whether to rent a home vs. buying a home.

Introduction to return on capital and cost of capital. Using these concepts to decide where to invest. Created by Sal Khan.

Introduction to return on capital and cost of capital. Using these concepts to decide where to invest. Created by Sal Khan.

In this video, we review the key features, behavior, and consequences of a monopoly. Created by Sal Khan.

Learn the difference between rivalry and excludability, and how these characteristics determine whether a good is a private good, public good, artificially scarce good, or common resource.

Patricians and plebeians; Roman citizens, Senators and Consuls: learn about the political and social structures of ancient Rome.

Continuing our survey of ancient history. End with a dominant Rome and the life of Jesus.

How the United States Supreme Court has at times allowed the restriction of the civil rights of minority groups and at other times has protected those rights. Plessy v. Ferguson, Brown v. Board of Education and Shaw v. Reno.

Sal Khan and John Dickerson kick off a series of videos focused on how current events relate to US history and civics. John Dickerson is co-host of CBS This Morning. He was previously CBS News' Chief Washington Correspondent, Political Director and anchor of Face The Nation. Dickerson is also a contributor to Slate's Political Gabfest and to The Atlantic. During the 2016 presidential campaign, Dickerson moderated CBS News' two presidential debates. Prior to CBS, Dickerson was Slate Magazine's Chief Political correspondent and covered politics for twelve years for Time magazine.