Declining Returns to Education in Norway? Comparing Estimates across Cohorts, Sectors and over Time
研究了挪威教育系统对收入差距的影响，发现1980和1990年教育回报率保持稳定，且不同经济部门间也无显著差异，高学历人群的工资溢价并未因教育扩张而下降。
We examine the role of the Norwegian education system in explaining the moderate and stable earnings dispersion in Norway. Estimating earnings equations for 1980 and 1990, we find that returns to education have been remarkably stable in Norway, also when we compare returns to education across different sectors of the economy. Our analysis controls for self‐selection into education by using an instrumental variable technique. We estimate separate education earnings profiles for different cohorts to identify the effect on wage premiums of the large changes that have taken place in the Norwegian education system. The substantially higher level of educational attainment for more recent cohorts does not, cet. par. , seem to have a negative effect on educational wage premiums for these younger cohorts.