Uncertainty and Central Banl Transparency: A Non-Bayesian Approach

Daniel Laskar ()
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Daniel Laskar: PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PSE - Paris-Jourdan Sciences Economiques - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique

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Abstract: We underline that some results obtained in the literature on central bank transparency may be quite different when we take a non-Bayesian approach to uncertainty, where "ambiguity" is taken into account. We consider some specific argument of the literature (obtained under a Bayesian approach), which implies that political uncertainty can be beneficial and central bank transparency harmful. We show that when ambiguity is large enough, these results do not hold anymore: political uncertainty is always harmful and central bank transparency always beneficial. Furthermore, as soon as we depart from the Bayesian case, Knightian uncertainty is always harmful. JEL Classification: E58; E52 Keywords: central bank transparency; political uncertainty; Knightian uncertainty; ambiguity; non-Bayesian approach

Keywords: central bank transparency; political uncertainty; Knightian uncertainty; ambiguity; non-Bayesian approach; transparence de la banque centrale; incertitude politique; incertitude au sens de Knight; ambiguïté; approche non-bayésienne (search for similar items in EconPapers)
Date: 2010-09-27
New Economics Papers: this item is included in nep-cba, nep-mon, nep-pol and nep-upt
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