I'm not saying tax cuts are causing a recession. I'm pointing out that if you look at the periods in the last century where there is a relatively high tax rate for the upper margins the recessions that took place during those periods tended to be relatively shorter in comparison to recessions that take place when the tax rates were lower.
I realize that correlation doesn't necessary equate to causation but the correlation is worth investigating by serious economic students imo.
Same goes for banking regulations. Canada has a very strict leash on their banks compared to us after the repeal of Glass-Steagall and their trip through this global recession has been relatively mild compared to US.
Look at Iceland. Arguably the country were the current global problem first reared its ugly head. They nationalized banks and are looking at prosecutions for banking officers or have prosecuted them already.
Now Iceland has pulled back from the brink...
http://topics.nytimes.com/top/news/international/countriesandterritories/iceland/index.html