The toughest are people mistakes, when you put the wrong person in a job. Sometimes you're too slow to move them out. Or not getting the right people involved to solve a problem, or doing something out of anger; you learn, just don't do that. But I'd have to say the Whale was one of them, and I would also have to put Bear Stearns and Washington Mutual on the list at this point.

We've had fairly consistent financial results.

When you leave people behind, and those people who are left behind, it's not their fault, it's the leaders of the institutions. There's always going to be an elite. You can have an elite in a communist society. It is the leaders, something went wrong, and the leaders collectively are responsible.

JPMorgan was already, for the most part. Our businesses at JPMorgan share the same cash-management systems. The commercial bank, the private bank, the retail bank, they all use the branches. The cash-management system moves the money around the world - for global corporations, and for you, the consumer, too.

I also believe that most of the emerging economies have a fairly large amount of foreign exchange reserves, relative to 10 years ago.

Dodd-Frank is 2,000 pages long. It covers thousands of rules, regulations, interpretations and things like that.

If you talk to anyone involved in business - forget banks and big business - talk to small businesses - do it yourself, don't ask me - they'll tell you it's crippling. Small-business formation is the lowest it has ever been in a recovery, and it's really for two reasons. One is regulations and the second is access to capital for people starting new businesses.