A Black Swan in the stock market leads to devastating consequences for the global economy and causes a collapse of financial markets. The most well-known example of such an event is the global financial crisis of 2008. Banks and other lenders in the USA relaxed the requirements for granting loans for the purchase of real estate at that time, which in part meant that people with no credit rating were accepted for mortgages on real estate. As a result of the mortgages not being repaid, the US government approved a $1 trillion financial bailout package to rescue the large banks and restore the economy. Germany also supported the banks with almost 500 billion euros. The result: the United States, Germany, and many other industrialised countries slipped into a recession that no one had anticipated.