What is MCDA and why do we need it?

Value measurement using cost-effectiveness analysis (CEA) is one of the core stables of health economic research.  CEA often uses quality adjusted life years (QALYs) to capture how a treatment affects a patients mortality and morbidity.  CEA makes explicit assumptions about the tradeoffs between mortality and morbidity by assuming these are additive.  Further, this approach, however,…