When does ambiguity fade away?

Filippo Massari, Jonathan Newton

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the prior support is finite, long-run ambiguity is known to be a possible outcome only if the learning problem is misspecified (Marinacci and Massari, 2019). We show that if the prior support is naturally rich, long-run ambiguity cannot occur.

Original languageEnglish
Article number109404
JournalEconomics Letters
Early online date11 Jul 2020
Publication statusPublished - Sep 2020


  • Ambiguity
  • Learning
  • Misspecified learning
  • Robust statistical decisions

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