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International versus Domestic Shocks and Pass-Through to Country Prices: A Heterogeneous VAR Approach

Author

Listed:
  • Alviarez, Vanessa
  • Pedroni, Peter
  • Powell, Andrew
  • Quevedo Rocha, Ingri Katherine

Abstract

This study investigates the disconnect between falling agricultural commodity prices and persistent food inflation by applying a Heterogeneous Vector Autoregression (VAR) model to a panel of 203 countries using data from 1961 to 2022. It analyzes the impact of global crops, fertilizer, and oil prices on domestic inflation and explores the asymmetries in the pass-through of global shocks. Results show that fertilizer price shocks significantly influence crop prices, especially maize and soybeans, while production shocks have a weaker effect. Demand-driven price changes exhibit higher pass-through to food inflation compared to supply-driven shocks, with country-specific characteristics shaping these responses. A historical decomposition reveals that global factors played a larger role in inflation during 2021, particularly for emerging economies, while advanced economies were more affected by domestic shocks. These findings highlight the importance of tailored policies to mitigate inflation in the face of global commodity price volatility.

Suggested Citation

  • Alviarez, Vanessa & Pedroni, Peter & Powell, Andrew & Quevedo Rocha, Ingri Katherine, 2025. "International versus Domestic Shocks and Pass-Through to Country Prices: A Heterogeneous VAR Approach," IDB Publications (Working Papers) 13986, Inter-American Development Bank.
    • Handle: RePEc:idb:brikps:13986
    DOI: http://dx.doi.org/10.18235/0013406
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    More about this item

    JEL classification:

    • E30 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - General (includes Measurement and Data)
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • Q02 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General - - - Commodity Market
    • Q11 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Aggregate Supply and Demand Analysis; Prices

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