This paper argues that skill-biased technical change has some deficiencies as a hypothesis about the impact of technology on the labor market and that a more nuanced view recently proposed by Autor, Levy and Murnane (2003) is a more accurate description. The difference between the two hypotheses...

There is little doubt that technology has had the most profound effect on altering the tasks that wehumans do in our jobs. Economists have long speculated on how technical change affects boththe absolute demand for labour as a whole and the relative demands for different types of labour.In...

This paper shows, using data from both the US and the UK, that average plant size is larger in denser markets. However, many popular theories of agglomeration - spillovers, cost advantages and improved match quality - predict that establishments should be smaller in cities. The paper proposes a...