论文标题
估计血液供应弹性：来自普遍规模福利计划的证据
Estimating the Blood Supply Elasticity: Evidence from a Universal Scale Benefit Scheme
论文作者
论文摘要
我估计捐赠货币福利的血液捐赠的半弹性，即在葡萄牙使用国家卫生服务时的用户费用放弃。利用县内的差异，在福利估计的价值上，均可估计无条件的弹性，从而捕获了市场的整体响应和条件弹性，从而使血液驱动的数量保持恒定。这相当于确定捐赠给献血者的成本的度量。我根据周末的数量和周末的血液驱动器比例使用变量来进行内源性驱动器数量的仪器。补贴的一笔欧元增加了每10000名居民的捐款增加1.8％，其条件是血液驱动的数量。无条件效应较小。好处并不吸引新的捐助者，而是促进了反复捐款。此外，停产的福利导致预计捐款的平均约为18％。但是，我表明，血液驱动器有可能有效地替代货币激励措施来解决市场失衡。
I estimate the semi-elasticity of blood donations with respect to a monetary benefit, namely the waiver of user fees when using the National Health Service, in Portugal. Using within-county variation over time in the value of the benefitI estimate both the unconditional elasticity, which captures overall response of the market, and the conditional elasticity, which holds constant the number of blood drives. This amounts to fixing a measure of the cost of donation to the blood donor. I instrument for the number of blood drives, which is endogenous, using a variable based on the number of weekend days and the proportion of blood drives on weekends. A one euro increase in the subsidy leads 1.8% more donations per 10000 inhabitants, conditional on the number of blood drives. The unconditional effect is smaller. The benefit does not attract new donors, instead it fosters repeated donation. Furthermore, the discontinuation of the benefit lead to a predicted decrease in donations of around 18%, on average. However, I show that blood drives have the potential to effectively substitute monetary incentives in solving market imbalances.
