The New Palgrave Dictionary of Economics

2018 Edition
| Editors: Macmillan Publishers Ltd


  • Charles Blackorby
Reference work entry


A preordering (also called a weak ordering or a quasi-ordering) is a reflexive and transitive binary relation which is not necessarily complete.


Difference principle (J. Rawls) Preordering Reflexivity Transitivity Utilitarianism 
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  1. Blackorby, C., and D. Donaldson. 1977. Utility vs. equity: Some plausible quasi-orderings. Journal of Public Economics 7: 365–382.CrossRefGoogle Scholar
  2. Sen, A.K. 1970. Interpersonal aggregation and partial comparability. Econometrica 38: 393–409.CrossRefGoogle Scholar

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© Macmillan Publishers Ltd. 2018

Authors and Affiliations

  • Charles Blackorby
    • 1
  1. 1.