I then follow up with four major aspects of economic research in the last 60 years, the period of my scholarly activity. One, econometric methodology and practice, is of such fundamental importance that it cannotgo unnoticed, although I played no role in it. With the other three, general equilibrium, dynamic processes, and uncertainty and information, I was more intimately involved.

Kenneth Arrow, "Some Developments in Economic Theory Since 1940: An Eyewitness Account" Annu. Rev. Econ. 2009