In this paper we report evidence on the relationship between trade openness, technology adoption and the relative demand for skilled labour in the Turkish manufacturing sector, using firm-level data over the period 1980–2001. In a dynamic panel data setting, using a unique database comprising data from 17,462 firms, we estimate an augmented cost share equation whereby the wage bill share of skilled workers in a given firm is related to international exposure and technology adoption. It emerges that R&D expenditures are positive and significantly related to skill upgrading. This result supports the skill-biased technological change argument in the case of a middle-income country such as Turkey. Moreover, the firm-level analysis reveals...