There are many factors that have contributed in creating a crisis in the credit markets. We haven't seen the end yet, we're still learning about what created the problems we're facing now.
This system of loan origination is highly organized, and more recently some investment products were created that allowed financial institutions to more efficiently move mortgages into secondary markets and off their books. The result was that lenders became more interested in originations than they were in creating quality products. Fed Governor Frederick Mishkin calls it "the originate-to-distribute model."
"The originate-to-distribute model, unfortunately, created some severe incentive problems, which are referred to as principal-agent problems, or more simply as agency problems, in which the agent (the originator of the loans) did not have the incentives to act fully in the interest of the principal (the ultimate holder of the loan). Originators had every incentive to maintain origination volume, because that would allow them to earn substantial fees, but they had weak incentives to maintain loan quality. " Governor Mishkin 2/29/08
A memo circulating through JPMorgan Chase entitled "Zippy Cheats & Tricks" ended up in the hands of Oregonian reporter Jeff Manning. The memo explains how to push loans through the company's automated underwriting system, essentially encouraging fraud. Manning it's unclear how widely the memo was circulated, but it does provide a piece of evidence supporting an issue I've been talking about for some time, and exactly what Governor Mishkin was trying to explain.
While loan submissions do have to be put together to fit specific loan products, suggestions from the memo like "Remove any mention of gift funds" asks the reader to commit fraud. While a lender rep might instruct a broker on how to structure loan submissions to fit a particular loan program, I believe there was a fuzzy line between putting together a package that fit the program, and putting together a loan package that shouldn't have made it through they system in the game to bypass program guidelines enforced computerized (automated) underwriting systems and human underwriters.
Due to the interconnected nature of the loan industry, the effects from memos like these wouldn't have been restricted to JPMorgan Chase, these types of ideas would have been disseminated to all institutions from the top, and laterally. As bank employees and brokers picked up practices from one institution, they could communicate them to others and take them with them as the changed jobs (which occurred often as the jobs in the mortgage industry boomed). This is how I believe these and other "Cheats & Tricks" affected many institutions.
The resulting loans wouldn't meet the requirements for the packages they were bundled in. Subsequent ratings would be meaningless. This leaves us today with no idea what potential performance to expect from specific mortgage backed investment products.
This is not the only reason we are facing issues today. High rates of leverage, dissaggregation, rapid (miscalculated) inflation are among many factors contributing to this credit crisis. I suggest however, that this cheating contributed to increasing the volume of mortgages that currently are souring the performance of and investor confidence in credit markets.
Jeff Manning"Chase mortgage memo pushes 'Cheats & Tricks" The Oregonian 3/27/08 via Calculated Risk

Hey hey Caleb!
Not much to say on this because -- I'm not good with deep stuff. But I try to read this kinda stuff so I have half-a-clue.
Anyway, just wanted to say "hey!" I'm in Atlanta with the gang!
Hope everything is well.
Caleb~
We all might be sitting on a bunch of wiggly economics and schemes and hoping they don't hatch!
For many years lenders have been instructing agents to call repair credits something other than what they really are, generally credit to buyer toward closing costs. While one could say the buyer used their CC money for repairs and the contract was technically correct, I feelit would be better for all concerned including the buyer and seller if the repair was noted as "satisfied by credit".
Nice to see you around. I can't tell from your profile what you are "up to" though. Give me a ring if you get a chance.
janeAnne, "wiggly" scary but I love it ;)
Sharon Thank you, I hadn't heard about these cases of insurance fraud, I know Florida is currently having a difficult time with high insurance rates.
Cyndee, thank you and hello to you too.
Kathy, Hi, Unfortunately there are quite a few "pillars of the industry" that are in trouble right now.
Ardell, "satisfied by credit" is an interesting way of handling it. In most cases it's important the buyer does not see any cash back from the seller at the closing table, so it is most simply handled as a closing cost credit, this is intended to satisfy the conditions of the loan, but I've seen it done other ways as well. Regarding the profile...yeah I've got some work to do. :)
Missy, you're right, and while a lot of this was happening anyways, this memo is the first time that I remember seeing it written down.