In this volume a diverse group of economists, philosophers, political scientists, and psychologists address the problems, principles, and practices involved in comparing the well-being of different individuals.

Acknowledgments; Introduction Jon Elster and John E. Roemer; 1. The moral basis of interpersonal comparisons Thomas M. Scanlon; 2. Against the taste model James Griffin; 3. Utilitarian metaphysics? John Broome; 4. Local justice and interpersonal comparisons Jon Elster; 5. Notes on the psychology of utility Daniel Kahneman and Carol Varey; 6. Adult-equivalence scales, interpersonal comparisons of well-being, and applied welfare economics Charles Blackorby and David Donaldson; 7. Interpersonal comparisons of utility: why and how they are and should be made Peter J. Hammond; 8. A consideration of the Harsanyi-Sen debate on utilitarianism John A. Weymark; 9. Deducing interpersonal comparisons from local expertise Ignacio Ortuno-Ortin and John E. Roemer; 10. Subjective interpersonal comparison Aanund Hylland; 11. Utilitarian fundamentalism and limited information C. D'Aspremont and L. A. Gerard-Varet; Index.