It is insightful to use the art of "process thinking" to see how the mortgage market reached such towering heights, which caused the global financial crisis, while under the control of otherwise very smart stakeholders.
"Balanced process" and "snowballing process" are the two simple metaphors used to describe process thinking. These terms are used because they are self explanatory.
Years ago, the mortgage market was a balanced process between banks and home owners. Without governmental intervention, banks tended to only loan to those that had high probability of repayment. This seemed to exclude many within certain low income geographical zones and banks were accused of "red-lining" out low income communities.
Under various forms of governmental, community and media coercion banks were compelled to give loans with higher risk profiles. Over time, the original targets of these high risk loans benefited and the program was expanded to include additional "communities". Until 1998 when the so-called liar-loans were extended to include everybody. At that time I was in a new job for only few months, and qualified for a $200k mortgage.
Little did I know this was the beginning of a snowballing process that brought me a rapidly increasing home value. More and more people started buying homes bidding up prices further. Some people took total advantage and began "flipping" homes further inflating home values. The volume of new loans snowballed and home prices increased at unnatural rates.
Until home prices could not increase beyond an unnaturally high, and the party ended. The real estate market "blew its top" and fell down the other side. This effect has happened many times before in other financial markets going back to the tulip mania in the 15th century.
By 2005 there was little possible upside to real estate investments and literally all mortgages given would soon be underwater and meet anybodies definition of poor investment or high risk. The easy money, low interest rates, easy terms, low qualification standards played out their inevitable finality and the real estate market froze and then dropped.
Many of us saw this coming but took advantage while the party was on. But who held the party? And what kept the party going?
Without the F&F's buying mortgages, then brokers and banks could not make additional loans. Since those underwriting loans no longer had to hold at least 10% of any loan given, they no longer cared about payback potential. These two points amounted to a witches brew that caused an avalanche. Policy was behind both points, and scarily neither has been addressed and continues to this day.



