1. The economics of moral hazard: Further Comment;Arrow;Amer. Econ. Rev.,1968
2. Uncertainty and the welfare economics of medical care;Arrow;Amer. Econ. Rev.,1963
3. The economics of moral hazard;Pauly;Amer. Econ. Rev.,1968
4. Uncertainty and the need for collective action;Zeckhauser,1969