Testing the validity of the compulsory schooling law instrument

- We test the validity of compulsory schooling laws as instrument for education.
- We apply the tests of Huber and Mellace (2015) and Kitagawa (2015) to SHARE data.
- The results do not point to violations of instrument validity.

Based on Huber and Mellace (2015) and Kitagawa (2015), we test the validity of compulsory schooling laws as instrument for endogenous schooling choices in the SHARE data. We do not refute the instrument, but acknowledge that its validity might be violated even if testable implications hold.