The mortgage securitization and servicing industries say proposed changes to the servicing compensation model for Fannie Mae and Freddie Mac securities would have a negative effect on liquidity in the to-be-announced market, hurt investors in agency MBS and increase the cost of mortgage credit for borrowers. The Federal Housing Finance Agency released a discussion paper last fall that outlined two potential new approaches to servicing compensation: a fee-for-service approach favored by the two government-sponsored enterprises, and a reserve account approach developed by lender...