References

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• 2007A simple panel unit root test in the presence of cross‐section dependence12,758 cited
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• 2012Testing for Granger non-causality in heterogeneous panels5,911 cited
• 2001The nature and growth of vertical specialization in world trade3,223 cited
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• 2002How does insertion in global value chains affect upgrading in industrial clusters?2,582 cited
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• 2008Trading Tasks: A Simple Theory of Offshoring2,257 cited
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