Abstract: This book develops a new theory of the obligations to future generations, based on a new Rule Consequentialist account of the morality of individual reproduction. The result is a coherent, intuitively plausible moral theory that is not unreasonably demanding — even when extended to cover future people — and that accounts for a wide range of independently plausible intuitions covering individual morality, intergenerational justice, and international justice. In particular, it is superior to its two main rivals in this area: person-affecting theories and traditional Consequentialism. The former fall foul of Parfit’s Non-Identity Problem, while the latter are invariably implausibly demanding. Furthermore, many puzzles in contemporary value theory (such as Parfit’s Repugnant Conclusion) are best solved if strict Consequentialism is abandoned for a more moderate alternative. The heart of the book is the first systematic exploration of the Rule Consequentialist account of the morality of individual reproduction. This yields a strong commitment to reproductive freedom, and also provides the best foundation for a liberal theory of intergenerational and international justice. The final chapters argue that while it will include a Rule Consequentialist account of the morality of reproduction, the best overall moral theory is likely to be a composite one, such as the Combined Consequentialism the author developed in The Demands of Consequentialism.

Keywords: Consequentialism, future generations, Rule Consequentialism, intergenerational justice, international justice, Parfit, Repugnant Conclusion, demandingness, reproduction, non-identity