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Market imperfections, equilibrium and arbitrage

Jouini, Elyès - EconWPA - 2003

The theory of asset pricing, which takes its roots in the Arrow-Debreu model (Theory of value [1959, chap. 7]), the Black and Sholes formula (1973) and Cox and Ross (1976 a and b), has been formalized in a general framework by Harrison and Kreps (1979), Harrison and Pliska (1979) and Kreps...

Persistent link: https://www.econbiz.de/10005076947

Equilibrium Pricing in Incomplete Markets

Jouini, Elyès; Bizid, Abdelhamid - EconWPA - 2003

Given exogenously the price process of some assets, we constrain the price process of other assets, which are characterized by their final pay-offs. We deal with an incomplete market framework in a discrete time model and assume the existence of the equilibrium. In this setup, we derive...

Persistent link: https://www.econbiz.de/10005413106

Equity Allocation and Portfolio Selection in Insurance: A simplified Portfolio Model

Taflin, Erik - EconWPA - 1999

A quadratic discrete time probabilistic model, for optimal portfolio selection in (re-)insurance is studied. For positive values of underwriting levels, the expected value of the accumulated result is optimized, under constraints on its variance and on annual ROE's. Existence of a unique...

Persistent link: https://www.econbiz.de/10005125679

Portfolio Selection with Two-Stage Preferences

Taboga, Marco - EconWPA - 2005

We propose a model of portfolio selection under ambiguity, based on a two-stage valuation procedure which disentangles ambiguity and ambiguity aversion. The model does not imply 'extreme pessimism' from the part of the investor, as multiple priors models do. Furthermore, its analytical...

Persistent link: https://www.econbiz.de/10005134917

Portfolio Selection with Probabilistic Utility, Bayesian Statistics, and Markov Chain Monte Carlo

Rossi, Pietro; Tavoni, Massimo; Cocco, Flavio; … - EconWPA - 2002

We propose a novel portfolio selection approach that manages to ease some of the problems that characterise standard expected utility maximisation. The optimal portfolio is no longer defined as the extremum of a suitably chosen utility function: the latter, instead, is reinterpreted as the...

Persistent link: https://www.econbiz.de/10005413052

HEURISTICS USED BY HUMANS WITH PREFRONTAL CORTEX DAMAGE: TOWARD AN EMPIRICAL MODEL OF PHINEAS GAGE

Houser, Daniel; McCabe, Kevin; Keane, Michael; Bechara, … - EconWPA - 2003

by pre-specifying a set of candidate decision-making heuristics and then assigning each subject to the heuristic that … type classification approach introduced by Houser, Keane and McCabe (2002) to investigate the heuristics used by subjects … that it does not require us to specify the nature of subjects’ heuristics in advance. Rather, both the number and nature of …

Persistent link: https://www.econbiz.de/10005062723

Long-Run Cash-Flow and Discount-Rate Risks in the Cross-Section of US Returns

Koubouros, Michail; Malliaropulos, Dimitrios; … - EconWPA - 2005

Merton�s Intertemporal CAPM to test whether these four sources of risk command different risk prices. The model performs well …

Persistent link: https://www.econbiz.de/10005076992

Explaining the Beta, Size and Value Effects Under the Relative Value Theory

Alb, Silviu Iulian - EconWPA - 2004

. Such prices determine intrinsic returns that satisfy the CAPM equation. This paper shows that assets that pay a constant … predicts slightly higher discount rates than the CAPM. Empirical evidence supporting the CAPM cannot reject the RVT at a …

Persistent link: https://www.econbiz.de/10005076993

An Analysis of Hedge Fund Performance

Capocci, Daniel - EconWPA - 2002

Using one of the greatest hedge fund database ever used (2796 hedge funds including 801 dissolved), we investigate hedge funds performance using various asset-pricing models, including an extension form of Carhart's (1997) model combined with Fama & French (1998) Agarwal & Naik (2000) models and...

Persistent link: https://www.econbiz.de/10005134782

EVOLUCION DE LAS ESTRATEGIAS DE INVERSION EN ACCIONES (BORRADOR)

Rubio, Fernando - EconWPA - 2005

desarrollo del CAPM y APT; y, la actual, correspondiente a las anomalias del CAPM, la cual incluye el estudio del behavioural …

Persistent link: https://www.econbiz.de/10005134816