Capping the size of American banks won't eliminate the needs of big businesses; it will force them to turn to foreign banks that won't face the same restrictions.

Our global corporate investment bank competes with Goldman Sachs, Citibank, and a bunch of other banks that are in those businesses. We may have slightly different products or services, but so what? That's always been true in American business.

I was a normal human being, but I did like that. I read a lot. I also liked math and science.

I do believe that some of these regulations made the markets more volatile, and it remains to be seen how bad that can be.

More people are working, lending is up and savings are up. These are all positive signs for a strengthening economy.

Companies that grow for the sake of growth or that expand into areas outside their core business strategy often stumble. On the other hand, companies that build scale for the benefit of their customers and shareholders more often succeed over time.

Part of the reason some Japanese companies have underperformed financially was corporate governance and board structures.