Asset Prices in an Ambiguous Economy

Daniele Pennesi ()

No 315, Carlo Alberto Notebooks from Collegio Carlo Alberto

Abstract: This paper studies the pricing implications of the sole ambiguity aversion, in a Lucas’ tree economy where asset returns are ambiguous. Abstracting from a specific functional form, we disentangle the model-specific effect from the effect of ambiguity aversion. In addition, we allow the investor to change her tastes across time in a dynamically consistent way. Two phenomena are consistent with ambiguity aversion: portfolio inertia and price indeterminacy. We provide intuitive conditions to guarantee the existence and to characterize equilibria, showing that the relevant information to price asset is contained in a set of priors who is identifiable in any model used in applications. Lastly, we prove that ambiguity enriches the standard pricing formula by an additional stochastic discount factor and we calculate its explicit formfor various models.

Keywords: Asset Pricing; Knightian Uncertainty; Ambiguity Aversion; Indeterminacy (search for similar items in EconPapers)
Pages: 35 pages
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.carloalberto.org/wp-content/uploads/2018/11/no.315.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:cca:wpaper:315

Access Statistics for this paper

More papers in Carlo Alberto Notebooks from Collegio Carlo Alberto Contact information at EDIRC.
Bibliographic data for series maintained by Giovanni Bert ().