• Title of article

    Three typesofambiguity

  • Author/Authors

    Lars PeterHansen، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2012
  • Pages
    24
  • From page
    422
  • To page
    445
  • Abstract
    For eachofthreetypesofambiguity,wecomputearobustRamseyplanandanassociated worst-case probabilitymodel. Ex post, ambiguityoftypeIimpliesendogenouslydistorted homogeneous beliefs,whileambiguitiesoftypesIIandIIIimplydistorted heterogeneous beliefs.Martingalescharacterizealternativeprobabilityspecificationsandclarifydistinc- tions amongthethreetypesofambiguity.WeuserecursiveformulationsofRamsey problemstoimposelocalpredictabilityofcommitmentmultipliersdirectly.Toreducethe dimensionofthestateinarecursiveformulation,wetransformthecommitmentmultiplier to accommodatetheheterogeneousbeliefsthatarisewithambiguityoftypesIIandIII.Our formulationsfacilitatecomparisonsoftheconsequencesofthesealternativetypesof ambiguity
  • Journal title
    Journal of Monetary Economics
  • Serial Year
    2012
  • Journal title
    Journal of Monetary Economics
  • Record number

    846532