Why Policies Fail: The Illusion of Services in the Opiod EpidemicStrach, P., Zuber, K., & Perez-Chiques, E. (2020). Why policies fail: The illusion of services in the opiod epidemic. Journal of Health Politics, Policy & Law, 45(2), 341–364.
This is an example of an analysis used to determine barriers, which tend to explain why policy is not accomplishing the goals initially set forth and how to evaluate policy.