| 来源类型 | Working Paper |
| 规范类型 | 报告 |
| DOI | 10.3386/w29599 |
| 来源ID | Working Paper 29599 |
| Does Physician-Hospital Vertical Integration Signal Care-Coordination? Evidence from Mover-Stayer Analyses of Commercially Insured Enrollees | |
| William Encinosa; Avi Dor; PhuongGiang Nguyen | |
| 发表日期 | 2022-01-03 |
| 出版年 | 2022 |
| 语种 | 英语 |
| 摘要 | We examine the impacts of physician-hospital integration on care fragmentation and other measures of care-coordination using a dynamic model of movers and stayers in commercially insured plans. Although recent growth in the share of practicing physicians belonging to these vertical organizations has sparked considerable policy debate, there is a paucity of evidence on the merits of vertical integration in the private segment of the market. We fill the gap by focusing on care-coordination in the relatively open plans that dominate commercial insurance, namely Preferred Provider Organizations (PPOs). We exploit the fact that physician-hospital integration levels vary dramatically across MSA and focus on orthogonal employment-based transfers for identification. We track 415,000 beneficiaries with 17 million claims between 2010 and 2016. We find that standard two-way fixed effect mover-stayer models produce biased estimates since there are heterogeneous effects of integration. Extending the dynamic event study design of Sun and Abraham (2021) to mover-stayer analyses, we are able to avoid these biases. We find that a move from the 10th to 90th percentile of physician integration level causes a 20% relative decrease in a care fragmentation index; similar declines are found in independent markers of fragmentation such as use of out-of-network and single-service facilities. Vertical integration of either primary care physicians or specialists reduced fragmentation significantly. However, only vertical integration of specialists led to significant reductions in medical spending. Our results are robust when adjusting for moves associated with alternative contractual arrangements among providers that do not require outright ownership. |
| 主题 | Health, Education, and Welfare ; Health ; Industrial Organization ; Market Structure and Firm Performance |
| URL | https://www.nber.org/papers/w29599 |
| 来源智库 | National Bureau of Economic Research (United States) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/587282 |
| 推荐引用方式 GB/T 7714 | William Encinosa,Avi Dor,PhuongGiang Nguyen. Does Physician-Hospital Vertical Integration Signal Care-Coordination? Evidence from Mover-Stayer Analyses of Commercially Insured Enrollees. 2022. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| w29599.pdf（814KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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