The fear that offshoring may destroy large numbers of jobs in developed economies is widespread in the public mind. Blinder (2006) and others have suggested that this fear arises because firms are now able to trade not just physical inputs, but also service inputs which were previously regarded as non-tradeable. Many of these services, such as research and development, customer services or IT support are also skill-intensive, suggesting that offshoring may affect workers previously regarded as insulated from international competition.
However, despite the strong policy interest, our academic understanding of trade in services is very limited, especially compared to the theoretical and empirical advances which have been made in relation to the trade in goods. This is at least partly due to the paucity of detailed and high quality data on trade in services. Amiti and Wei (2005b, 2006) and Crin`o (2008) provide the only previous studies to have explicitly looked at the role of service offshoring for employment, but they use industry-level measures of offshoring.