What is evidence-based health policy?

Many people have heard of evidence-based medicine (EBM).  A perspective piece in the New England Journal of Medicine by Katherine Baicker and Amitabh Chandra, however, tries to define what evidence-based health policy (EBHP) is.  They list three key criteria: Policies need to be well-specified.  For instance, “expand Medicaid coverage” is too general, whereas specifying that benefit package A…