The central irony of a financial crisis is that while it is caused by too much confidence, borrowing and lending, and spending, it can be resolved only with more confidence, borrowing and lending, and spending. This is true, above all, of housing policies. Fannie Mae and Freddie Mac, government-sponsored enterprises (GSEs) whose purpose is to mitigate cyclicality in housing and that today dominate the mortgage market, have become a textbook case of disastrous and pro-cyclical policy.
Summers, Lawrence H. "How to Stabilize the Housing Market." Washington Post, October 23, 2011.