University of Illinois-Springfield, Springfield, Ill., March 6, 2008

Congress opened the door five years ago for banks to enter the insurance and investment arenas, but the expected rush has yet to occur. That's probably fine with critics, who feared that the return of universal banks would bring back Depression-like instability.

Financial innovation has been described as the “life blood of efficient and responsive capital markets.” Yet, there have been few quantitative investigations of financial innovation and the diffusion of these new technologies. Of the latter, there have been only three prior quantitative...