Jan. 30 (Bloomberg) -- Duncan Niederauer, chief executive officer of NYSE Euronext, talks with Bloomberg's Erik Schatzker about the need for greater transparency in derivatives trading. Niederauer also discusses the outlook for regulation of financial markets under President Barack Obama, sentiment among corporate chief executive officers and the integration of Euronext. They talk at the World Economic Forum in Davos, Switzerland. (Source: Bloomberg) ... bbgdvs ...