Replication Material for "No Calm After the Storm -- Diaspora Influence on Bilateral Emergency Aid Flows"

This study analyzes how migrants affect their host country's foreign policy towards their home country by measuring their influence on bilateral emergency aid. I develop the argument that besides political lobbying and the targeting of aid by the donor country, migrants affect emergency aid by providing a linkage between the countries and increasing the salience of a disaster abroad. The empirical analysis shows that the location and size of a country's diaspora is an important predictor of emergency aid flows after natural disasters. Interaction effects provide support for the linkage argument: while the diaspora effect does not increase with the host country's level of democracy, it is strongest with the least severe and most distant disasters.

本研究通过量化移民对双边紧急援助的影响，探讨移民如何对其居住国针对母国的外交政策施加影响。本文提出核心论点：除捐助国的政治游说与援助定向分配机制外，移民还可通过搭建两国间的沟通纽带，提升境外灾害的受关注度，进而对紧急援助施加影响。实证分析结果表明，一国侨民（diaspora）的分布区位与群体规模，是自然灾害发生后紧急援助流向的重要预测因子。交互效应验证了上述纽带假说：尽管侨民的影响效应并不会随居住国的民主水平提升而增强，但在灾害烈度最低、两国地理距离最远的情境下，该效应表现最为显著。