Using the interaction of language of country of birth and age-at-arrival as instruments, we find strong evidence of a causal effect of English as Additional Language (EAL) on the native–immigrant wage gap for male employees in the UK.

type="main" xml:id="rssa12014-abs-0001" <title type="main">Summary</title> <p>The paper considers the problem of parameter estimation in a model for a continuous response variable Y when an ordinal explanatory variable X is missing for a substantial proportion of the sample and the selection mechanism (non-deletion from the...</p>