The making and unmaking of opportunity: educational mobility in 20th‐century Denmark
研究了20世纪丹麦代际教育流动性的长期趋势，发现1940-1960年代出生的孩子因义务教育改革而流动性上升，但1970-1980年代出生的孩子尽管大学扩招，流动性反而下降，并检验了导致下降的机制。
Abstract We examine trends in intergenerational educational mobility throughout the 20th century in Denmark. We demonstrate that major reforms in compulsory schooling substantially increased not only the levels of education but also intergenerational mobility in education for children born in the 1940s through to the 1960s. However, even as college education has expanded significantly for children born in the 1970s and 1980s, educational mobility has been declining. We empirically test different mechanisms that could account for this decline in educational mobility.