| 来源类型 | Working Paper |
| 规范类型 | 报告 |
| DOI | 10.3386/w29735 |
| 来源ID | Working Paper 29735 |
| How Do Copayment Coupons Affect Branded Drug Prices and Quantities Purchased? | |
| Leemore Dafny; Kate Ho; Edward Kong | |
| 发表日期 | 2022-02-14 |
| 出版年 | 2022 |
| 语种 | 英语 |
| 摘要 | Drug copayment coupons to reduce patient cost-sharing have become nearly ubiquitous for high-priced brand-name prescription drugs. Medicare bans such coupons on the grounds that they are kickbacks that induce utilization, but they are commonly used by commercially-insured enrollees. We estimate the causal effects of coupons for branded drugs without bioequivalent generics using variation in coupon introductions over time and comparing differential responses across enrollees in commercial and Medicare Advantage plans. Using data on net-of-rebate prices and quantities from a large Pharmacy Benefits Manager, we find that coupons increase quantity sold by 21-23% for the commercial segment relative to Medicare Advantage in the year after introduction, but do not differentially impact net-of-rebate prices, at least in the short-run. To quantify the equilibrium price effects of coupons, we employ individual-level data to estimate a discrete choice model of demand for multiple sclerosis drugs. We use our demand estimates to parameterize a model of drug price negotiations. For this category of drugs, we estimate that coupons raise negotiated prices by 8% and result in just under $1 billion in increased U.S. spending annually. Combined, the results suggest copayment coupons increase spending on couponed drugs without bioequivalent generics by up to 30 percent. |
| 主题 | Health, Education, and Welfare ; Health ; Industrial Organization ; Market Structure and Firm Performance |
| URL | https://www.nber.org/papers/w29735 |
| 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/587409 |
| 推荐引用方式 GB/T 7714 | Leemore Dafny,Kate Ho,Edward Kong. How Do Copayment Coupons Affect Branded Drug Prices and Quantities Purchased?. 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 | ||
| w29735.pdf（563KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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