This paper assesses empirically two competing unemployment theories. It identifies one structural break in U.K. and German unemployment around 1980 that is more severe in both absolute and relative terms than that for the United States in 1973. This offers support for the structuralist theory. A...

In Keynes' General Theory, investment determines effective demand, which determines unemployment and the labour market plays a negligible role. In New Keynesian models, labour market institutions determine the natural rate of unemployment and the speed at which unemployment adjusts to it....

We develop a model demonstrating conditions under which firms will invest in the general training of their workers, and show that firms’ incentives to invest in general training are increasing in task complexity. Workers’ heterogeneous observable innate ability affects the variety of tasks...

It is well known that workers in Europe appear to receive more firm-provided general training than their counterparts in the United States. Moreover, there is considerable evidence that firms, in many cases, pay for the general training, contrary to the predictions of Becker (1964). In important...