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Aggregation Bias in the Measurement of U.S. Global Value Chains

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Aggregation Bias in the Measurement of U.S. Global Value Chains

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Working Paper Number: CES-24-49

Abstract

CES_working_paper_series
Download Aggregation Bias in the Measurement of U.S. Global Value Chains [PDF - > 1MB]

This paper measures global value chain (GVC) activity, defined as imported content of exports, of U.S. manufacturing plants between 2002 and 2012. We assesses the extent of aggregation bias that arises from relying on industry-level exports, imports, and output to establish three results. First, GVC activity based on industry-level data underestimate the actual degree of GVC engagement by ignoring potential correlations between import and export activities across plants within industries. Second, the bias grew over the sample period. Finally, unlike with industry-level measures, we find little slowdown in GVC integration by U.S. manufacturers.

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Page Last Revised - November 1, 2024
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