Definition of Ex Ante / Ex-Ante

The Economics of Uncertainty and Information (MIT Press), Amazon

Ex ante is latin for "beforehand". In models where there is uncertainty that is resolved during the course of events, the ex antes values (e.g. of expected gain) are those that are calculated in advance of the resolution of uncertainty.

Terms related to Ex Ante:

  • Ex Post
  • Knightian Uncertainty
  • Arrovian Uncertainty

Resources on Ex Ante: Writing a Term Paper? Here are a few starting points for research on Ex Ante:

  • What is Wrong with the Coase Theorem?

Books on Ex Ante:


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Econterms. "Definition of Ex Ante / Ex-Ante." ThoughtCo, Mar. 29, 2017, Econterms. (2017, March 29). Definition of Ex Ante / Ex-Ante. Retrieved from Econterms. "Definition of Ex Ante / Ex-Ante." ThoughtCo. (accessed September 19, 2017).