Duncan Niederauer on derivatives trading, NY v London and the global economy

Part 2: In the second section of this two-part interview, NYSE Euronext's ceo Duncan Niederhauer says his exchange is having success in the listings battle with the rest of the world but warns against complacency. Regulation, Mr. Niederhauer says, is the great unknown in discussing the future of a rapidly consolidating exchange business. Next week: Robert Eckert of Mattel. If you would like to suggest a question for Mr. Eckert, please send it to the address below.