The impact of a sudden asylum seeker influx on host attitudes: Quasi-experimental evidence from South Korea
利用韩国济州岛也门寻求庇护者突然涌入这一准实验情境，研究发现该事件降低了本地居民的多元文化接受度，并对其态度和看法产生负面影响，且影响因经济与非经济因素而异。
How native residents, in response to asylum seekers’ inflows, change their attitudes and perceptions toward non-natives has recently become a topic of intense research. However, most previous studies have focused exclusively on Western countries. The present study offers the first evidence on this issue from an East Asian context, specifically investigating South Korea , which has not traditionally been a destination for forcibly displaced individuals (excluding North Korean defectors). For causal evidence, this paper exploits the sudden influx of Yemeni asylum seekers to Jeju Island in South Korea , which only impacted the island ‘locally’—due to the region’s unique visa-exemption policy and the government’s immediate restrictions on the asylum seekers’ post-arrival cross-region movement off the island. Furthermore, the geographic feature of the island eliminates spill-over concerns, providing a unique, ideal quasi-experimental setting. The difference-in-differences estimates suggest that the abrupt influx of asylum seekers decreased host residents’ multicultural acceptance and negatively affected their attitudes and perceptions toward non-natives. Notably, strong heterogeneity seems to exist, depending on hosts’ economic (e.g., education, income, employment status) and non-economic (e.g., age, multicultural education) factors. This study extends its examination to various other outcomes, such as neighborhood preference and national pride.