Due to a tax law implemented in 1998, Dutch employers can claim an extra tax deduction when they train employees aged 40 years or older. This causes a discontinuity in a firm's cost of training an employee. We exploit this discontinuity to identify two effects: the effect of the tax deduction on...

The paper proposes an alternative methodology for testing signalling hypothesis based on chances to get a job in a particular class of the job market. The individuals are ranked and matched by an external mechanism, based on preferences of employers in respect to actual observable and perceived...