Health Economics / Evidence Based Medicine / Health / Medicine / Applied Economics / Quebec / Humans / Multitasking / Female / Male / Payment System / Specialization / Natural experiment / Empirical evidence / Public health systems and services research / Self selection / Administrative Data / Labour Supply / Hours of Work / Fee for Service Model / Quebec / Humans / Multitasking / Female / Male / Payment System / Specialization / Natural experiment / Empirical evidence / Public health systems and services research / Self selection / Administrative Data / Labour Supply / Hours of Work / Fee for Service Model