Abstract This paper investigates the impact of monetary incentives on whole blood donations. We take advantage of a quasi-natural experiment in Germany, in which one blood donation site changes its payment scheme from remunerated to non-remunerated. All other donation sites maintain their payment schemes. We show that donation volumes drop significantly after the pay drop and do not recuperate. At the same time, donation volumes increase at other paid donation sites, which is partly due to donor migration to these sites. We do not find any impact of the changed payment scheme on blood quality. Our results offer additional insight into the complex question whether it is efficient to ensure blood supply by paying donors a direct monetary compensation.

中文翻译：

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直接现金支付对全血供应的影响

摘要本文研究了金钱激励对全血捐献的影响。我们利用德国的一次准自然实验，在该实验中，一个献血站点将其支付方案从有偿的改为无偿的。所有其他捐赠站点都保持其付款方案。我们表明，薪资下降之后，捐赠量显着下降并且不会恢复。同时，其他有偿捐赠地点的捐赠数量增加，部分原因是捐赠者向这些地点迁移。我们发现更改付款方式不会对血液质量产生任何影响。我们的结果提供了对这个复杂问题的进一步了解，该问题是否可以通过直接向捐赠者支付金钱补偿来确保血液供应有效。