The aim of my bachelor's work is to highlight the reasons and causes of the origin of mortgage crisis, its effects and to propose possible solutions. The first part of my work analyses the economic development of the USA since 2000 to 2008 as well as factors and subjects contributing to the current financial instability. Among them are ranked the "subprime lending", securitization process, rating agencies and off-balance sheet accounting. The second part is deeply concerning with American authorities for regulation and financial market supervision. Primarily are analyzed The U. S. Securities and Exchange Commission and their, in connection with financial crisis, taken measures. The final part of my papers is devoted to the future economic d...