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Industrial Metal Supply Shocks and Heterogeneous Macroeconomic Effects: Evidence from Copper

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  • Bastianin, Andrea
  • Rossini, Luca
  • Testa, Alessandra

Abstract

This paper studies the macroeconomic effects of global copper supply shocks. We identify exogenous disruptions to copper supply using a Bayesian structural VAR of the world copper market that combines sign and narrative restrictions. We then trace the international transmission of the identified shock using a two-step approach based on country-level models for major copper-importing and exporting economies. We find that copper supply shocks raise producer prices and depress industrial activity in importing economies, while exporters benefit from higher world prices through improved terms of trade. Importer-exporter status alone is insufficient to characterize exposure: heterogeneity in responses reflects differences in manufacturing copper intensity and buffering capacity through secondary copper production.

Suggested Citation

  • Bastianin, Andrea & Rossini, Luca & Testa, Alessandra, 2026. "Industrial Metal Supply Shocks and Heterogeneous Macroeconomic Effects: Evidence from Copper," FEEM Working Papers 387620, Fondazione Eni Enrico Mattei (FEEM).
    • Handle: RePEc:ags:feemwp:387620
    DOI: 10.22004/ag.econ.387620
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