We build up a differential game to investigate the interplay between the quality of health care and the presence of an evolving disease in a duopoly where patients are heterogeneous along the income dimension. We prove unicity, stability and perfection of the open-loop Nash solution. Moreover,...

This paper describes R&D competition between a managerial firm and an entrepreneurial one, in a Cournot market. It is shown that a manager interested in output expansion exerts higher R&D efforts, yielding productive efficiency as compared to the performance of a strictly profit-seeking firm....