We replicate the study of Tabak & Cajueiro (2007): "Are the crude oil markets becoming weakly efficient over time? A test for time-varying long-range dependence in prices and volatility" published in Energy Economics 29, pp. 28-36. The results have been mostly confirmed. Specifically, we have...

We examine co-movements between biofuels and a wide range of commodities and assets in the US, Europe, and Brazil. We analyze a unique dataset of 33 commodities and relevant assets (between 2003 and 2016) which is unprecedented in the biofuels literature. We combine the minimum spanning trees...

We review the fuel-food price linkage models of the time series, structural, and general or partial equilibrium nature with the main attention devoted to the time series literature. Our assessment is nested in the discussion of general commodity prices co-movement on one side and in the...

We examine co-movements between biofuels (ethanol and biodiesel) and a wide range of commodities and assets in the USA, Europe, and Brazil. The main contributions are twofold. First, we analyze a unique dataset of 32 commodities and relevant assets (between 2003 and 2015) which is unprecedented...

We assess the fuel-food price linkage models of the structural and of the time series nature with the main attention devoted to the time series literature. We document shifting focus from a straightforward vector autoregressive and error-correction analysis of fuel-food commodity price level...