Skill-Biased Technical Change is a shift in the production technology that favors skilled over unskilled labor by increasing its relative productivity and, therefore, its relative demand. Traditionally, technical change is viewed as factor-neutral. However, the observed rapid rise in the relative wage of skilled workers in conjunction with an upward trend in their relative supply means that rec...

ew system of secondary education has been incepted in 1992, consisting of three study branches of theoretical, technical/ vocational, and kardanesh. regarding the founding philosophy of kardanesh branch, i.e. provision of skilled manpower proportionate with labor market need and also training skilled, semi-skilled and master workforce, art students may receive kardanesh high school diploma prov...

This essay discusses the e¤ect of technical change on wage inequality. I argue that the behavior of wages and returns to schooling indicates that technical change has been skill-biased during the past sixty years. Furthermore, the recent increase in inequality is most likely due to an acceleration in skill bias. In contrast to twentieth century developments, most technical change during the nin...

This essay discusses the effect of technical change on wage inequality. I argue that the behavior of wages and returns to schooling indicates that technical change has been skill-biased during the past sixty years. Furthermore, the recent increase in inequality is most likely due to an acceleration in skill bias. In contrast to twentiethcentury developments, much of thr technical change during ...