This paper analyses how international outsourcing affects plant productivity, with the major contribution lying in the identification of heterogeneous effects for firms with differing internationalisation status. The results point to a striking pattern: the status of being an outsourcer matters...

The impact of international trade on firm productivity is tested by accounting for firms' import as well as export status for a large panel of Irish manufacturing firms. Two-way traders and exporters-only are found to be the most productive firms, with a significant gap between them and...

The causality from outsourcing, defined as the procurement of inputs from outside the boundaries of the firm, to productivity is tested for a large panel of Irish manufacturing firms. Theory suggests that as firms outsource more 'non-core' activities to specialized providers, productivity due to...