In Morals by Agreement David Gauthier proposes four criteria for classifying a society's advancement toward ‘higher stages of human development.' Significantly, these criteria — material well-being, breadth of opportunity, average life-span, and density of population — do not include as an equally valuable achievement the society's capacity to sustain its standard of living. Nonetheless Gauthier presents three arguments intended to show that a community founded on his distributive theory will view depletionary resource policies as unreasonable and unacceptable. I shall contend (...) that these arguments do not succeed in motivating sustainable rates of resource exploitation. Furthermore, I argue that if truly just and rational resource use policies can be arrived at, such policies could only succeed by employing a conception of property rights substantially different from Gauthier's. (shrink)