We extend the standard quality-ladder model with heterogeneous workers by including efficiency wages and unions. We find that higher union bargaining power leads to a negative relationship between growth and unemployment. An increase in the supply of human capital, however, on the one hand...

This paper examines an economy with a large number of industries, each producing a different good. Technological change follows a Poisson process where firms improve their productivity through investment in Ramp;D. The less there are firms in the economy or the more they can coordinate their...

Unemployment is still the most pressing economic problem in Europe. It is consensus among most economists that the major fraction of the unemployment problem is not caused by short term business cycle factors, but is caused by structural problems. Thus, unemployment in Europe is a long term...