This paper studies the effects of redistributive taxation in credit markets with adverse selection and shows that there exists a range of taxes that creates Pareto improvement relative to the (zero-tax) market allocation by increasing aggregate investment. For sufficiently high taxes, an...

This paper studies general health insurance markets. It proposes an ex post risk adjustment scheme that discourages risk selection and promotes efficient competition. Under the proposed risk adjustment scheme, the regulator engages in transfers that are conditional on the ex post profits of...

I formalise a rather stylised insurance market with adverse selection as a standard duopoly. I formally specify demand functions and profits and I prove that a Nash equilibrium in pure strategies exists if and only if the well-known Rothschild-Stiglitz allocation is efficient