Paul Krugman: Why We Regulate

Paul Krugman is a Princeton economist and an op-ed columnist for the NYT.

...Why, exactly, are banks special? Because history tells us that banking is and always has been subject to occasional destructive “panics,” which can wreak havoc with the economy as a whole. ... Gilded Age America — a land with minimal government and no Fed — was subject to panics roughly once every six years. And some of these panics inflicted major economic losses.

So what can be done? In the 1930s, after the mother of all banking panics, we arrived at a workable solution, involving both guarantees and oversight. On one side, the scope for panic was limited via government-backed deposit insurance; on the other, banks were subject to regulations intended to keep them from abusing the privileged status they derived from deposit insurance, which is in effect a government guarantee of their debts.....

This system gave us half a century of relative financial stability. Eventually, however, the lessons of history were forgotten. New forms of banking without government guarantees proliferated, while both conventional and newfangled banks were allowed to take on ever-greater risks. Sure enough, we eventually suffered the 21st-century version of a Gilded Age banking panic, with terrible consequences....