Does immigration affect native wages? A meta-analysis

The impact of immigration on native wages remains a contentious issue in labour economics. This meta-analysis synthesises evidence from 88 studies published between 1985 and 2023, offering a comprehensive assessment of reduced-form estimates. We document substantial heterogeneity across estimates and show that contexts and empirical designs systematically shape reported effects. In particular, shift-share instrumental-variable strategies correct the upward bias seen in OLS estimates. Our findings emphasise the necessity for replication and enhanced transparency in methodological reporting. • We conduct a meta-analysis synthesising findings from 88 studies published between 1985 and 2023 on the impact of immigration on natives’ wages. • We document substantial heterogeneity across estimates. • We show that contextual and methodological choices play a crucial role in shaping wage estimates. • Our findings emphasise the necessity for replication and transparency in methodological reporting.