Dynamic connectedness between energy markets and the Brazilian cash market: An empirical analysis pre- and post-COVID-19

Brazil's significant commodity production is internationally recognized, yet the absence of a mature futures market exposes it to price risks and international shocks. This study explores the dynamic connectedness between commodity futures and the Brazilian cash markets, using a time-varying parameter vector autoregressive model. We also assess COVID-19's impact on this connectedness. We find a significant influence of oil prices on Brazilian ethanol prices, and particularly emphasize the Heating Oil spillover effect on ethanol in the post-COVID-19 era. We also note the ascension of Brazilian soybean spot markets' international significance since 2017, amplifying their role in global grain price discovery. Finally, by computing hedge ratios and effectiveness between commodity futures contracts and Brazilian spot prices, our study reveals soybean cash price as the most effective hedge. These insights deepen comprehension of connectedness within Brazilian commodity markets, thereby guiding investors and policymakers in strategic energy policy decisions.

Automated summary

This study explores the dynamic connectedness between commodity futures and the Brazilian cash markets, and assesses the impact of COVID-19 on this connectedness. The findings show that oil prices significantly influence Brazilian ethanol prices, and emphasize the impact of Heating Oil on ethanol in the post-COVID-19 era. The study also highlights the increasing international significance of Brazilian soybean spot markets since 2017.