TY - RPRT AU - Gruber, Jonathan AU - Maclean, J. Catherine AU - Wright, Bill AU - Wilkinson, Eric AU - Volpp, Kevin G. TI - The Impact of Increased Cost-Sharing on Utilization of Low Value Services: Evidence from the State of Oregon PY - 2017/Jan/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 10477 UR - https://www.iza.org/publications/dp10477 AB - In this study we examine the impact of a value-based insurance design (V-BID) program implemented between 2010 and 2013 at a large public employer in the state of Oregon. The program substantially increased cost-sharing, specifically copayments and coinsurance, for several healthcare services believed to be of low value and overused (sleep studies, endoscopies, advanced imaging, and surgeries). Using a differences-in-differences design coupled with granular, administrative health insurance claims data, we estimate the change in low value healthcare service utilization among beneficiaries before and after program implementation relative to a comparison group of beneficiaries who were not exposed to the V-BID. Our findings suggest that the V-BID significantly reduced utilization of targeted services. These findings have important implications for both public and private healthcare policies as V-BID principles are rapidly proliferating in healthcare markets. KW - value-based insurance design KW - low value KW - healthcare KW - cost-sharing ER -