The global financial crisis of 2008 is a major ongoing financial crisis, the worst of its kind since the Great Depression. It became prominently visible in September, 2008 with the failure, merger or conservatorship of several large United States-based financial firms. The underlying causes leading to the crisis had been reported in business journals for many months before September, with commentary about the financial stability of leading U.S. and European investment banks, insurance firms and mortgage banks consequent to the sub-prime mortgage crisis.
Beginning with failures of large financial institutions in the U.S., it rapidly evolved into a global crisis resulting in a number of European bank failures and declines in various stock indexes, and significant reductions in the market-value of equities and commodities worldwide. The crisis has led to a liquidity problem and the de-leveraging of financial institutions especially in the United States and Europe, which further accelerated the liquidity crisis. World political