Schröder Joris Melchior, Merz Eva-Maria, Suanet Bianca, Wiepking Pamala
Department of Sociology, Vrije Universiteit Amsterdam, De Boelelaan 1105, 1081, HV, Amsterdam, the Netherlands; Dept. of Donor Medicine Research, Plesmanlaan 125, 1066, CX, Amsterdam, the Netherlands.
Department of Sociology, Vrije Universiteit Amsterdam, De Boelelaan 1105, 1081, HV, Amsterdam, the Netherlands.
Health Place. 2023 Sep;83:103072. doi: 10.1016/j.healthplace.2023.103072. Epub 2023 Aug 7.
Life-saving transfusions and numerous other medical treatments are enabled by a minority of people that donate blood. But why do some people repeatedly engage in such prosocial behaviour, especially when it is costly to themselves? This study examines to what extent social contagion within neighbourhoods - changing behaviour in response to the behaviour of others - affects repeated blood donation behaviour. We draw on longitudinal survey and register data from a representative sample of blood donors in the Netherlands from 2007 to 2014 (N = 15,090). Using a panel data model and an instrumental variable approach, we find that donors are positively affected by donations made by other donors living in their neighbourhood. This effect does not seem to be mediated by normative or informational social influence. Exploratory analysis further attributes this finding to social contagion within donor couples. Our study contributes to the literature on repeated blood donation behaviour, and can inform retention strategies of blood banks.
少数献血者使得挽救生命的输血及众多其他医学治疗成为可能。但为什么有些人会反复参与这种亲社会行为，尤其是当这对他们自身来说代价高昂时？本研究考察邻里间的社会传染——因他人行为而改变自身行为——在多大程度上影响重复献血行为。我们利用了2007年至2014年荷兰献血者代表性样本的纵向调查和登记数据（N = 15,090）。通过使用面板数据模型和工具变量方法，我们发现献血者会受到居住在其邻里的其他献血者献血行为的积极影响。这种影响似乎并非由规范性或信息性社会影响介导。探索性分析进一步将这一发现归因于献血者夫妇之间的社会传染。我们的研究为重复献血行为的文献做出了贡献，并可为血库的保留策略提供参考。
