The Congressional Budget Office said allowing the GSEs to retain a portion of their earnings could help stabilize the mortgage market and the federal budget.In a recent report studying the effects of recapitalizing Fannie Mae and Freddie Mac, the CBO concluded that while it may limit competition in the market, the benefits outweigh any potential concerns. With GSE capital levels scheduled to be depleted by 2018, there have been several legislative proposals over the past year advocating a recap. The CBO published a report in response to the proposals but put a different spin on it. The CBO created an “illustrative policy option” in which Fannie and Freddie would retain an average of $5 billion of their profits annually.