Research shows that economic, political and social factors all drive migration, but we still know little about their interaction, especially the interplay between increasingly selective migration policies and family relations. Studies stress the role played by social capital in responding to migration restrictions and the importance of intermediaries in encouraging access to institutional resources, but we lack systematic analyses linking migrant networks and recourse to migration-facilitating programs. This paper fills this gap by investigating how siblings’ influence and migration programs combine in shaping migration from the French Overseas departments (DOM). Using a survey with detailed information on DOM families’ migration histories (MFV, INED, 2010), it assesses whether individuals stay, migrate with or without the support of migration programs, depending on their siblings’ past trajectories. A longitudinal approach and the nesting of individuals within families allow controlling for unobserved heterogeneity. Siblings migrating without the programs’ support decrease the chances of migration with it and increase the chances of migration without it. Siblings migrating with the programs’ support increase the chances of migration with it and decrease the chances of migration without it. This work shows how DOM populations engage with selective pro-migration policies, stressing the role of family relations in driving cumulative patterns of migration. It contributes to uncovering the way social and political factors interact in contexts of high migration prevalence with increased selectivity of migration and especially pro-migration policies.

中文翻译：

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兄弟姐妹对从海外法国人到法国大陆的移民路径的影响

研究表明，经济、政治和社会因素都会推动移民，但我们对它们之间的相互作用仍然知之甚少，特别是日益选择性的移民政策与家庭关系之间的相互作用。研究强调了社会资本在应对移民限制方面所发挥的作用以及中介机构在鼓励获得机构资源方面的重要性，但我们缺乏将移民网络与移民促进计划联系起来的系统分析。本文通过调查兄弟姐妹的影响力和移民计划如何结合来塑造法国海外省 (DOM) 的移民，填补了这一空白。通过对 DOM 家庭移民历史详细信息的调查（MFV，独立非执行董事，2010 年），它根据其兄弟姐妹过去的轨迹，评估个人是否在有或没有移民计划支持的情况下留下来、移民。纵向方法和家庭中个体的嵌套可以控制未观察到的异质性。兄弟姐妹在没有计划支持的情况下迁移会减少获得计划支持的移民机会，并增加没有计划支持的移民机会。在计划支持下移民的兄弟姐妹会增加获得该计划支持的移民机会，并减少没有该计划支持的移民机会。这项工作展示了 DOM 人群如何参与选择性的促移民政策，强调家庭关系在推动累积移民模式中的作用。它有助于揭示社会和政治因素在移民流行率高、移民选择性增加（尤其是支持移民政策）的背景下相互作用的方式。