Research for evidence on offshoring activities and its driving forces has been done by analyzing gross trade flows related to offshoring using gravity equations augmented by ad hoc measures of supply-side country differences. We develop a specification grounded in incomplete specialization that...

We suggest that bilateral gravity equations augmented by ad hoc measures of absolute supply-side country differences are misspecified. Building on Haveman and Hummels (2004), we develop and test an alternative specification rooted in incomplete specialization that views bilateral gravity...