Assignment: The Big Short -How the Subprime Crisis Happens and the Reasons Behind. The Big Short is a movie introduces the underlying reason for the subprime crisis by showing how three groups of people get benefits from shorting the collapsing mortgage market. The fraudulent processes behind authoritative departments and specialists are appealing. Banks are spread themselves windbaggery, in the meanwhile, covering up the truth. Walt Street is filled with rooks, hypocrites, and apes. No one is recognizing the approaching volcano except for a floppy hedge fund manager, an investor who works at a bank and is money-stink, and two fearless youngsters. They see through the whole fraud and make the correct predicament of economic depression. The significance of it in both human nature and financial operation are worth considering about. Michael Burry is the forerunner of making Credit Default Swap on the mortgage market, which means to bet against. He finds the truth by confirming the actual composition of CDOs in person and understands how unstable they are. Micheal predicts that the mortgage market is going to collapse in the second session in 2017 and asks several banks to make CDS to short the market. He buys 1.3 million swaps which spite his boss, Lawrence. By an occasion, Jared Vennett, the executive in charge of global asset-back security trading at Deutsche Bank, hears about Michial’s actions and buy some swaps as well. And he accidentally calls Mike Buam and convinces his fund group——FrontPiont to join him so that he could get the commission. Mark and his team confirm Jared’s words by doing a series of surveys and buy some swaps. In the meantime, two young investors, Charlie Geller and Jamie Shipley accidentally find the proposal of Jared’s prediction for the mortgage market after failing to get the ISDA, which is the permission. They buy a lot of swaps as well. They ask Ben, a retired banker to help them get ISDA. After nearly two years, because more and more people are unable to afford the loan, the value of subprime mortgages is declining while the CDO is increasing, which is incredible. All three groups of people are getting frustrated and becoming suspicious on their way. Rating agencies are refusing to lower credit ratings of CDO’s as well. Just then they attend a conference which is about pretty much everything. Mike meets a CDO manager, Wing Chau, then he understands how CDOs and synthetic CDO work, and forecasts the collapsing of the global economy. After that, he buys all of Wing’s swaps. In the meantime, Jamie and Charlie short the AA mortgages. In the end, a ruin happens. Jared and Michael get tons of money. Mike is hesitated about selling swaps because of his central office, Morgan’s stupidity: someone else shorts the BB and BBB mortgages but sells an enormous number of AA and AAA swaps. Neither his clientele’s investments are threatened nor the crooks are escaping from the execution. Eventually, he keeps holding the swaps and doesn’t sell until the very last minutes. Although people get to know the truth in the end, poor and immigrants are certainly blamed nevertheless. The subprime crisis is unrestrained gambling. What differentiates them is whether confirming the truth or not. So how does the fraud work? Firstly, the MBS comes from a banker, he proposes to combine a variety of mortgages together, to make more profits. They select stable house-owners at first, but there are not much. So they create CDO. CDOs are explained as a package of thousands of mortgages with an over 90% AAA rate, They are popular because people believe that everyone pays their mortgages, therefore, it is definitely trustful. However, CDOs are actually filled with subprime mortgage loans for more than 95% which is an incredible proportion. According to Mike and his team’s survey, they find that land agents sign contracts without paying attention to income or job stability. Poor are selecting adjustable loans which means loans are depending on the financial situation. Once the houses are not rising in price, interest rates are increasing and become unaffordable. Therefore the whole mortgage market is built on bubbles. Bonds are no more stable. As for Rating agencies, they’re just selling ratings for profits and prevent customers from going to their competitors. As time goes by, the value of subprime mortgages is decreasing. Ironically, the bet on the mortgage is more valuable than itself. That is called synthetic CDO, or CDO square. It is similar to a chain of gamblings. The investors are confident about CDO because of its excellent performance, which is misleading. The ignorance of the truth attracts more and more apes and triggers to an atomic bomb, with a drunk controller holding the remoter. Finally, when the collapse happens, the government is blaming the poor and a few scapegoats. What an ironic system it is! The destruction causes catastrophic explosion to the global economy. The creators of the predicament are neither the unfortunate scapegoats nor dark-minded bankers. They are all the participants in this gambling. Selfish agents, sign the contrasts without caring for customers’ income. CDO managers are acting in collusion with bankers. Rating agencies care only for profits and competitors. The most hilarious part of the tragedy is, thousands of apes are following the authorities without thinking or observing. They are called “investors”. The reality is never as perfect as the appearance, and sometimes it is even adverse to the consequences. It is hard to estimate how fake and greedy humans are, it is important to keep an eye around nevertheless. The movie says that :“ The truth is like the poetry, but most people hate poetry.” Because they’re too lazy to strengthen themselves and too proud to admit their weakness. That’s the cause of the subprime crisis and economic depression—— human nature.