Visualize Economic Freedom Scores of World Countries
Click on financial freedom, type in the US, Australia, Sweden and Portugal. Australia didn't get hit at all. Sweden got hit but managed fine, while Portugal had to get bailouts. Maybe financial deregulation is not the cause of the crisis. I don't think you can regulate away crisis, because many crisis are caused by bad kind of regulation that forces or inventivenesses banks to prop up the economy.
Remember, the people who are going to create these regulations, were not even able to predict it in the first place. They have no idea what is causing crisis.