“…For instance, Hutchison et al (1996) conducted a retrospective cohort study to determine the impact of capitation payment on hospital utilization; they found physician payment did not have an effect on utilization rates. In addition, there is considerable literature on physician productivity under different forms of remuneration (e.g., Evans, 1974;Brown and Lapan, 1979;Ellis and McGuire, 1986;Thornton and Eakin, 1997;Conrad et al, 1998Conrad et al, , 2002Fortin et al, 2008;Dumont et al, 2008). There has also been a significant amount of research done, particularly in the US, on risk selection and adverse selection amongst hospitals and insurance plans (e.g., Ellis, 1998;Frank et al, 2000;Luft and Miller, 1988).…”