Eric Ghysels

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Regime Switches in the Risk-Return Trade-Off

Staff Working Paper 2013-51 Eric Ghysels, Pierre Guérin, Massimiliano Marcellino
This paper deals with the estimation of the risk-return trade-off. We use a MIDAS model for the conditional variance and allow for possible switches in the risk-return relation through a Markov-switching specification.

On Portfolio Separation Theorems with Heterogeneous Beliefs and Attitudes towards Risk

Staff Working Paper 2008-16 Fousseni Chabi-Yo, Eric Ghysels, Eric Renault
The early work of Tobin (1958) showed that portfolio allocation decisions can be reduced to a two stage process: first decide the relative allocation of assets across the risky assets, and second decide how to divide total wealth between the risky assets and the safe asset. This so called twofund separation relies on special assumptions on either returns or preferences.

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