123 IZA Discussion Papers
IZA Discussion Paper No. 683
published as "Do employers use education as a signal for ability in developing countries? Evidence from Ghana" in: Applied Economics Letters, 2004, 11(4), 259-261
IZA Discussion Paper No. 603
published in: International Journal of Manpower, 2004, 25 (8), 688-713
IZA Discussion Paper No. 485
published in: European Economic Review, 2006, 50 (3), 695-736