Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We study the impact of language deficiency on the health status of childhood migrants to Australia. Our identification strategy relies on a quasi‐experiment comparing immigrants arriving at different ages and from different linguistic origins. In the presence of considerable non‐classical measurement error in self‐reported language proficiency, our results provide lower and upper bounds for a strong negative effect of English deficiency on health of between one half and a full standard deviation in the health score. Copyright © 2016 John Wiley & Sons, Ltd.