The Trump administration's economic agenda is the right agenda. Corporate taxes have been driving capital and brains and companies overseas for a decade. It has caused huge damage in investment and jobs and productivity. It was a mistake. We have to fix it. Counterintuitively, that usually helps middle-class wages, and lower-class wages, and job formation.

We're trying to win business by doing a good job for the clients, as opposed to, "We think being big and universal is just a great, wonderful thing." It's not a morality thing. It's a "Does it work for the client?" thing. Everything we do is because a client uses us. Everything we do is because a client chose to use us of his own free volition.

I don't think you're going to have one bank. Big companies aren't going to give us all their business. So they can pick and choose - by product, by country, whatever. We have major competition across every product in every place we operate.

I want Japan to think and say that we are better off for JPMorgan having been here through thick and thin.

The goal of what Japan's central bank is doing is to create growth. If it actually creates growth, in the long run, it will lead to appreciation.

My guess is the big Chinese banks will be in 100 countries by then. They will have very sophisticated operations, and they may very well have bought banks around the world in countries that allow it. I mean, I don't think the American government would allow them to buy JPMorgan. But they will be able to buy a sizable big bank in the U.S. at some point. Whether they do or not, or if it's allowed or not, I don't know.

We've seen the volatility at dollar-yen, U.S. Treasurys, JGBs (Japanese government bonds), German bunds.