This paper investigates the testable restrictions on the time-series behavior of equity premia implied by a representative agent model whose state and time-non-separable preferences are subject to taste shocks. The model nests state and time-separable preferences with and without taste shocks as...

Nous cherchons a apporter une solution satisfaisante a l'enigme de la prime de risque decouverte en 1985 par Mehra et prescott.

Our study is three-fold: we, first review the non-linear tests that we suggest to use to detect non-linearities. We, next, investigate the empirical power of the tests, using simulations under the null hypothesis that we have a linear AR model. We, then, turn to empirical data: the returns of...

In a previous paper, Abouda and Chateauneuf proved that for RDEU maximizing MM with non-increasing marginal utility, positivity of the bid-ask spread can be identified with a very weak form of risk aversion SMRA. We perform here a more thorough study of SMRA, firstly in a general setting, and...

In June 1997, the Nasdaq stock market and the New York Stock Exchange (NYSE) each lowered its minimum price increment on most stocks from eighths to sixteenths. Like other researchers investigating similar events, we find that quoted spreads and effective spreads decline on both markets with the...

This paper investigates the ex post rational price of Shiller (1981) to determine if it is a reliable guide to fundamental valuations of dividend-yielding assets. The ex post rational price is widely used to determine whether stock market price movements are rational responses to market news or...

To obtain the maximum benefits from diversification, financial theory suggests that investors should invest internationally because of the larger potential for risk reduction stemming, from the lower correlation existing between assets of different countries. The question that we raise in this...

Cet article tests la validite du Capital Asset Pricing Model pour le marche des actions suisses sur une periode allant de 1973 a 1991.

In this paper we derive an approximate analytical solution to the optimal consumption and portfolio choice problem of an infinitely-lived investor with power utility defined over the difference between consumption and an external habit. The investor is assumed to have access to two tradable...

This paper introduces regime switching into level-ARCH models for the short rates of the US, the UK, and Germany. Once regime switching and level effects are included there are no gains from including ARCH effects. It is of secondary importance how the regime switching is specified. The...