Although physicians are often expected to be gatekeepers to health insurance benefits such as paid sick leave, research indicates a substantial reluctance to reject patient requests for sickness certificates. We show that private information on the patient's part creates a conflict between the...

What is the best way to deliver various goods and services in the advanced complex economy? What is the appropriate division of labor among the state, the private for-profit, and the nonprofit sectors? This paper explores these questions relative to the well-being of consumers, and offers a set...

Primary care physicians have two roles: the healer and the gatekeeper. We show that, due to information asymmetries, they cannot be expected to fulfill the latter role. Better gatekeepers will be poorer healers; hence all patients, both truly sick and shirkers, will strictly prefer physicians...

The article discusses the possible cost savings of contracting out refuse collection in the Netherlands. According to foreign econometric studies, contracting out refuse collection leads to cost savings of approximately 20%. Our findings indicate that similar cost savings apply to the...

Elbert Dijkgraaf defended his PhD-thesis 'Regulating the Dutch Waste Market' at 5 november 2004. This thesis analyses whether the risen costs of waste collection and treatment can be diminished by changing policy instruments. The thesis shows that user fees are very effective in reducing the...

Primary care physicians have two roles: the healer and the gatekeeper. We show that, due to information asymmetries, they cannot be expected to fulfill the latter role. Better gatekeepers will be poorer healers; hence all patients, both truly sick and shirkers, will strictly prefer physicians...

I study the endogenous choice of a price or quantity contract in a mixed duopoly with a socially concerned firm which maximizes a combination of profit and consumer welfare. Contrasting the literature, I find that equilibria where firms adopt price contracts and quantity contracts might coexist....

Although physicians are often expected to be gatekeepers to health insurance benefits such as paid sick leave, research indicates a substantial reluctance to reject patient requests for sickness certificates. We show that private information on the patient's part creates a conflict between the...

In modern innovation economics, the underlying economic problems are market failure in private investment in new ideas, along with the coordination problems and the disruptive consequences of innovation. Innovation policy addresses the innovation problem with government action. Drawing upon the...

Although physicians are often expected to be gatekeepers to health insurance benefits such as paid sick leave, research indicates a substantial reluctance to reject patient requests for sickness certificates. We show that private information on the patient's part creates a conflict between the...