Did de-regulation cause the financial meltdown?

The evidence says "no":

...It is indeed impressive how rapidly the economists who failed to predict this crisis — or predicted the wrong crisis (a dollar crash) — have been able to produce such a satisfying story about its origins. Yes, it was all the fault of deregulation.

There are just three problems with this story.

1. deregulation began quite a while ago (the Depository Institutions Deregulation and Monetary Control Act was passed in 1980). If deregulation is to blame for the recession that began in December 2007, presumably it should also get some of the credit for the intervening growth.
2. the much greater financial regulation of the 1970s failed to prevent the United States from suffering not only double-digit inflation in that decade but also a recession (between 1973 and 1975) every bit as severe and protracted as the one we’re in now.
3. the continental Europeans — who supposedly have much better-regulated financial sectors than the United States — have even worse problems in their banking sector than we do. The German government likes to wag its finger disapprovingly at the “Anglo Saxon” financial model, but last year average bank leverage was four times higher in Germany than in the United States. Schadenfreude will be in order when the German banking crisis strikes.