1. The role of securities in the optimal allocation of risk-bearing;Arrow;Rev. of Econ. Studies,1963
2. Uncertainty and the welfare economics of medical care;Arrow;Amer. Econ. Rev.,1963
3. The economics of moral hazard: Further comment;Arrow;Amer. Econ. Rev.,1968
4. Markets with a continuum of traders;Aumann;Econometrica,1964