Which immigrants do citizens prefer? A meta-reanalysis of 100 conjoint experiments

In the past decade, an important literature in the social sciences has examined public attitudes toward immigrants in host societies. In it, a prominent experimental method-the conjoint design, where participants are tasked with rating or choosing between randomized profiles-has been used reliably to understand how immigrant characteristics shape admission preferences. We collate replication datasets from 100 individual studies spanning 1,475,403 immigrant profiles with 26 randomized attributes evaluated by 142,817 survey respondents from 36 countries. Meta-analyses reinforce well-established findings: Economic, cultural, humanitarian, and procedural factors all influence evaluations. Meta-reanalyses show that preferences are broadly similar across countries and demographic groups. However, they also reveal two additional patterns: Economic considerations have become more influential over time, and evaluations of individual immigrants differ sharply depending on where people stand on the broader immigration debate. These findings shed light on ongoing debates and point to fruitful areas for future research.