1. M. Blume The Pricing of Capital Assets in a Multiperiod World Rodney L. White Center for Financial Research, University of Pennsylvania 1976
2. J. Cox S. Ross The Pricing of Options for Jump Processes, Rodney L. White Center for Financial Research, Paper No. 275, University of Pennsylvania 1975
3. Current Population Reports: Consumer Income U.S. Department of Commerce, Social and Economic Statistics Administration 1974