We establish nonparametric identification in a class of so-called index models using a novel approach that relies on general topological results. Our proof strategy imposes very weak smoothness conditions on the functions to be identified and does not require any large support conditions on the...

This paper analyzes the interaction of direct and indirect risk selection in health insurance markets. It is shown that direct risk selection - using measures unrelated to the benefit package like selective advertising or 'losing' applications of high risk individuals - nevertheless has an...

This paper analyzes the distortions of health insurers' benefit packages due to adverse selection when there is imperfect competition. Within a discrete choice setting with two risk types, the following main results are derived: For intermediate levels of competition, the benefit packages of...

The aim of this paper is to analyse the efect of job insecurity on labour supply. We propose an extension of traditional discrete choice models of labour supply in order to allow for the introduction of non-pecuniary job attributes in the analysis. In our extended model, the choice alternatives...