When there is not put-call parity, there is an arbitrage opportunity. In the second of two videos on arbitrage and put-call parity, we explore how this works. Created by Sal Khan.
Put-Call Parity Arbitrage II. Created by Sal Khan.
The put-call parity formula for American options is considerably more complicated than for European options. In this video we explore what the difference in how these options can be exercise complicates this concept. Created by Sal Khan.
A put payoff diagram is a way of visualizing the value of a put option at expiration based on the value of the underlying stock. Learn how to create and interpret put payoff diagrams in this video. Created by Sal Khan.
Put vs. Short and Leverage. Created by Sal Khan.
Put Writer Payoff Diagrams. Created by Sal Khan.
Overview of quantitative easing. Created by Sal Khan.
Does increasing the money supply impact the price level? Learn about the quantity theory of money in this video.
A discussion of the various ways to measure return on assets. Created by Sal Khan.
More on the return on asset discussion. Created by Sal Khan.
Explore why the 2012 shooting of a black student became a pivotal tension point around race and justice during Barack Obama’s presidency, in these videos excerpted from FRONTLINE: Divided States of America. Trayvon Martin’s death at the hands of a neighborhood watch volunteer ignited passions across the nation. America’s first black president grappled with his response. Obama’s initial silence, followed by carefully guarded words, prompted a backlash—and not just from conservative pundits. Many in the black community were traumatized by the incident and by others like it. Following the shooter’s court acquittal the next year, Obama acknowledged his own experiences as a black American. For many, this was the first time in his administration that he openly spoke for black people.
During the World War Two years, a series of groundbreaking radio programs tried to mend the deep racial and ethnic divisions that threatened America. At a time when blacks were usually shown on the radio as lazy buffoons, the federal government and civil rights activists used radio for a counter attack. Did radio unify America in the face of war? This is "Radio Fights Jim Crow".
Raising money from an angel investor. Pre-money and post-money valuation. Created by Sal Khan.
This collection uses primary sources to explore Lorraine Hansberry's play, A Raisin in the Sun. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.
This video segment from Religion & Ethics Newsweekly shows the daily activities of two young American Muslims during the holy month of Ramadan.
The sighting of a new moon determines the beginning of the Islamic holy month of Ramadan. In this video from Religion & Ethics Newsweekly, follow the process of sighting a new moon for American Muslims.
In this video segment from Religion & Ethics Newsweekly, an American Muslim family observes Ramadan, the month in which Muslims fast daily from sunrise to sunset in order to demonstrate piety and develop self-restraint.
Infographic and teachers guide about teaching about ranked choice voting. Comparison of pros and cons.
This unique copy of the US Constitution was printed by Claxton and Babcock in Albany, New York, between February 11 and March 21, 1788. Copies of the Constitution were widely distributed following the document’s signing by the members of the Constitutional Convention on September 17, 1787, and six states had already ratified it. So why was this late printing even undertaken?
(Reading of the Declaration by actors)