TY - JOUR A1 - Hægeland, T. A1 - Klette, T.J. A1 - Salvanes, K.G. T1 - Declining returns to education in Norway? Comparing estimates across cohorts, sectors, and over time Y1 - 1999 DO - 10.1111/1467-9442.00173 JF - Scandinavian Journal of Economics VL - 101 IS - 4 ER -