We analyze the retirement behaviour of married couples using a new bi-variate proportional hazard model. This model generalizes the traditional univariate duration analysis to include a family-wide joint retirement process that induces both spouses to retire at the same time. The model is...

This paper studies the broad class of log-concave probability distributions that arise in economics of uncertainty and information.

A new class of regression type models termed essentially linear models is proposed. The class is characterized by geometric considerations. Within the class the distribution of the maximum likelihood estimator is easily approximated by a natural extension of the p-formula even though the MLE...