technological change and productivity growth takes place in an economy. Quite normally, some 30-50% of an industry's productivity … growth is due to this particular mechanism. Disruptions to this mechanism would have considerable effects on productivity …

of job mobility and theories of wage and promotion dynamics inside firms are combined with the human capital theory. The …

the idea of Lang and Kropp (1986), I argue that under the human capital hypothesis the reform should only have affected … of education on wages is minor compared to the human capital effect. I conclude that even though the comprehensive school … reform had a positive effect on average productivity, one should not make any hasty generalizations from this result …