1. The meaning of utility measurement;Alchian;Am. Econ. Rev.,1953
2. Hierarchy: Perspectives for Ecological Complexity;Allen,1982
3. Warm-glow versus cold prickle: the effects of positive and negative framing on cooperation in experiments;Andreoni;Q. J. Econ.,1995
4. Utility and the ‘ordinalist fallacy’;Armstrong;Rev. Econ. Stud.,1958
5. Invaluable goods;Arrow;J. Econ. Literature,1997