Technology spillover through trade and TFP convergence: 135Â years of evidence for the OECD countries

Using a new dataset on imports of technology and total factor productivity (TFP) over 135 years for the OECD countries, this paper tests whether knowledge has been transmitted internationally through the channel of trade. The empirical estimates show that there is a robust relationship between TFP and imports of knowledge and that 93% of the increase in TFP over the past century has been solely due to imports of knowledge. Furthermore, it is shown that knowledge spillovers have been an important contributing factor behind the TFP convergence among the OECD countries over the period 1870 to 2004.