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4 ways Congress caused the financial crisis
...Fannie and Freddie. Deterioration in the financial condition of the GSEs was not a surprise. … But, Congress did not respond and allowed increasingly fragile GSEs to endanger the entire financial system. It is difficult to discern why. Some did not want to jeopardize the increased provision of affordable housing. Many received generous financial support from the GSEs in return for their protection. For the purposes of this paper, the critical issue is that policymakers did not respond as the GSEs became systemically fragile. Again, I am not arguing that the timing, extent, and full nature of the housing bubble were perfectly known. I am arguing that policymakers created incentives for massive risk-taking by the GSEs and then did not respond to information that this risk-taking threatened the financial system....