In theory, health care providers may adapt their professional behavior to the financial incentives driven by their remuneration. Our research question is whether the users of health care services anticipate such a behavior from their general practitioner (GP) and, if they do, what are the...

We study optimal contracts in a regulator-agent setting with joint production, altruistic and selfish agents, and uneasy outcome measurement. Such a setting represents sectors of activities such as education and health care provision. The agents and the regulator jointly produce an outcome for...