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Commodity returns co-movement, uncertainty shocks, and the US dollar exchange rate

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  • Liao, Wenting
  • Ma, Jun
  • Zhang, Chengsi

Abstract

This study examines the time-varying effects of uncertainty shocks identified using the external instrument method on the broad-based movement of commodity returns since the early 1990s. We employ a vector autoregression augmented dynamic factor model with time-varying parameters and stochastic volatility to extract a common factor from 43 commodity returns. We find that uncertainty shocks reduce commodity returns across the board through this common factor and that their effects vary significantly over time, with a tendency to grow much stronger during recessions. Furthermore, uncertainty shocks often lead to dollar appreciation, so they can potentially account for the seemingly negative correlation between commodity returns and strength of the US dollar.

Suggested Citation

  • Liao, Wenting & Ma, Jun & Zhang, Chengsi, 2024. "Commodity returns co-movement, uncertainty shocks, and the US dollar exchange rate," Journal of International Money and Finance, Elsevier, vol. 143(C).
    • Handle: RePEc:eee:jimfin:v:143:y:2024:i:c:s0261560624000433
    DOI: 10.1016/j.jimonfin.2024.103056
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    Keywords

    Commodity return; Exchange rate; Uncertainty shock;
    All these keywords.

    JEL classification:

    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • Q02 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General - - - Commodity Market

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