README FOR REPLICATION OF:

Borghans, L., Diris, R., & Schils, T. (2026). The Teacher and the Test? an Analysis of the Short and Long‐Run Predictive Power of Achievement Indicators. Oxford Bulletin of Economics and Statistics.

Code and instructions provided by: Ron Diris
Contact: r.e.m.diris@law.leidenuniv.nl

This research was conducted with restricted access microdata of Statistics Netherlands. Under certain conditions, these microdata are accessible for statistical and scientific research. For further information, see https://www.cbs.nl/en-gb/our-services/customised-services-microdata/microdata-conducting-your-own-research.

The analysis makes use of the following microdata files:
- BAANPRSJAARBEDRAGTAB (for wage data)
- HOOGSTEOPLTAB (for educational attainment data)
- SMVO (educational cohort survey data: 1977 cohort)
- SLVO (educational cohort survey data: 1983 cohort)
- VOCL (educational cohort survey data: 1989, 1993 and 1999 cohorts)

The replication package consists of 7 Stata do-files:
- A master file (master.do). This contains the other 6 do-files within. Running this will produce all results
- A file containing the code for coding and merging the wage data (coding_lonen.do) 
- A file containing the code for coding and merging the educational attainment data (coding_opleiding.do) 
- A file containing the code for coding and merging the educational cohort data (coding_vocl.do) 
- A file containing the code for coding and merging the combined data file (coding_mergedfile.do) 
- A file containing the code for all the regression analysis (Regressions.do). This will produce all the estimates reported in the paper and the appendix, provided that the previous steps are carried out. Code is sorted by Table. 
- A file with a separate robustness tests that applies an Instrument Variable approach to correcting for measurement error (producing Appendix Table C5) 