The canonical supply-demand model of the wage returns to skill has been extremely influential; however, it has faced several important challenges. Several studies show that the standard approach sometimes produces theoretically wrong-signed elasticities of substitution, yields counterintuitive...

We test for the signalling hypothesis versus human capital theory using the Wiles test (1974) in a country which has experienced a dramatic increase in the supply of skills. For this purpose, we construct a job match index based on the usefulness of the school-provided skills and the relevance...

The globalization of labour markets makes language skills one of the key competences required by employers nowadays. Our purpose is to estimate the wage premium from foreign language skills (FLS) earned by the Poles. We also want to find out whether this premium is affected by the fact of...