Economic growth is an expansion of the capacity to produce, not just a temporary fluctuation in GDP. In this video, learn about the definition of economic growth and how growth occurs.

Not everyone who isn't working is considered unemployed. Learn how the official rate of unemployment is calculated in this video, and learn what it means to be officially unemployed. Created by Sal Khan.

How a central bank could use foreign currency reserves to keep its own currency from devaluing. Created by Sal Khan.

In the video we explore why the marginal utility per dollar spent should be equal for the last increment of either good purchased. Created by Sal Khan.

In the video we explore why the marginal utility per dollar spent should be equal for the last increment of either good purchased. Created by Sal Khan.

In this video, we learn how a nation's GDP can be calculated by summing up the value added by all the intermediate producers in a nation in a method called the value added approach.

This video shows how we can visualize marginal utility (MU) and total utility (TU) functions graphically.

There are many types of financial assets, but one of the most well-known are stocks. In this video, learn what it means when you buy a stock or share in a company and how stocks are valued. Created by Sal Khan.

To illustrate what the functions of money are, it can help to look at circumstances where those functions break down. Hyperinflation, in which prices of things increase really really fast, is one such example. Created by Grant Sanderson.

In a previous lesson we learned that there is the potential for two countries to gain from trade. But it is also possible that there might not be the potential to gain from trade. In this video, we explore the circumstance that would lead to there being no gains from trade.

Intuition behind why the current account and capital account should balance. Created by Sal Khan.

In this video, we explore a conflict that duopolists (and other oligopolies) face: there is a tension between cooperating and forming a cartel or cheating on that cartel once it is formed. Created by Sal Khan.

Unexpected inflation or deflation takes wealth away from one group and gives it to another group. This video talks about the winners and losers from inflation and deflation.

This video discusses how economists measure the total factor productivity, capital, and human capital for an aggregate production function.

Economists have long been interested in the causes of the business cycle. In this video we define the business cycle, discuss potential reasons it exists, and explore how it may be driven by emotion. Created by Sal Khan.