This article studies simultaneous changes in four labor market variables: the unemployment rates for college and high-school graduates, the education wage premium, and the level of college participation. It develops an equilibrium search and matching model of the labor market where education is...

A skill-biased change in technology can account at once for the changes observed in a number of important variables of the US labour market between 1970 and 1990. These include the increasing inequality in wages, both between and within education groups, and the increase in unemployment at all...