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α: calibrated so average coauthorship-adjusted count equals average raw count
In this paper, we examine whether longer compulsory schooling has a causal effect on mental health, exploiting a 1972 reform which raised the minimum school leaving age from age 15 to 16 in Great Britain. Using a regression discontinuity design, we find that the reform did not improve mental health. We provide evidence that extending the duration of compulsory schooling impacts mental health through channels other than increased educational attainment. We argue that these effects may mitigate or offset the health returns to increased educational attainment.