Asia Health Policy Program working paper # 37
September 19, 2013
How do demand- and supply-side incentives interact, when there are potentially large provider income effects? We develop a simple model and empirically test it with data from China’s Essential Medications List (EML) policy, which reduced patient copayments and changed provider incentives by removing a large source of revenue from primary care providers: drug dispensing revenues. Using a panel of patient-level spending and clinical data for Chinese patients with diabetes or hypertension over two and a half years, we find evidence of strategic provider response that dampened the impact of patient copayment reductions. Resource use and patient out-of-pocket spending did not change, when taking account of patient utilization outside primary care.
This paper has been published: Brian Chen, Y. Tony Yang, and Karen Eggleston, 2017. Patient Copayments, Provider Incentives and Income Effects: Theory and Evidence from the Essential Medications List under China’s 2009 Healthcare Reform,” World Medical & Health Policy 9(1): 24–44."