In the wake of the United States housing bubble and the subsequent subprime mortgage crisis there has been increased interest in renegotiation or modification of the mortgage loans rather than foreclosure, and some commentators have speculated that the crisis was exacerbated by the "unwillingness of lenders to renegotiate mortgages". Several policies, including the U.S. Treasury sponsored Hope Now initiative and the 2009 "Making Home Affordable" plan have offered incentives to renegotiate mortgages. Renegotiations can include lowering the principal due or temporarily reducing the interest rate. A 2009 study by Federal Reserve economists found that even using a broad definition of renegotiation, only 3% of "seriously delinquent borrowers" received a modification. The leading theory attributes the lack of renegotiation to securitization and a large number of claimants with security interest in the mortgage. There is some support behind this theory, but an analysis of the data found that renegotiation rates were similar among unsecuritized and securitized mortgages. The authors of the analysis argue that banks don't typically renegotiate because they expect to make more money with a foreclosure, as renegotiation imposes "self-cure" and "redefault" risks.