Skill-biased technical change is usually interpreted in terms of the efficiency parameters of skilled and unskilled labor. This implies that the relative productivity of skilled workers changes proportionally in all tasks. In contrast, we argue that technical changes also affect the curvature of...

Wages for more- and less-educated workers have followed strikingly different paths in the U.S. and Canada. During the 1980's and 1990's, the ratio of earnings of university graduates to high school graduates increased sharply in the U.S. but fell slightly in Canada. Katz and Murphy (1992) found...

Using very detailed register data on cognitive abilities and productive personality traits for nearly all Swedish males at age 18, we show that employment in the recent past has shifted towards skill-intensive occupations. Employment growth is monotonically skill biased in relation to this set...

Using population-wide Swedish register data on cognitive abilities and productive personality traits, we show that employment growth has been monotonically skill-biased in terms of these general-purpose intellectual skills, despite a simultaneous (polarizing) decline in middle-wage jobs....

Wages for more- and less-educated workers have followed strikingly different paths in the U.S. and Canada. During the 1980's and 1990's, the ratio of earnings of university graduates to high school graduates increased sharply in the U.S. but fell slightly in Canada. Katz and Murphy (1992) found...