How mortgage market has tightened

In 2006, chicanery driven by avarice infected the mortgage industry food chain: Some mortgage brokers pushed risky loans, borrowers lied about their income, appraisers inflated home values, lenders originated shaky mortgages, Wall Street firms bundled them as securities and sold them, and ratings firms characterized them as safe investments.

At the center of this distorted world was the subprime loan, issued at a high interest rate to borrowers with tarnished credit, checkered employment history and little or no money in the bank. Wall Street firms such as Lehman Bros. traded in the lucrative high-interest loans, which yielded quick profits for brokers who sold them and lenders that originated them.