Purpose – The purpose of this paper is to test for bubbles in the US hard red spring (HRS) wheat market from 2004 to 2014, with particular focus on 2007-2008 when the market experienced record-high price volatility. Design/methodology/approach – The authors apply a recently developed bubble...

This article shows, for the first time, where U.S. ethanol prices are discovered across the major regional markets in the country. We adopt a bivariate approach that compares each regional market against Chicago, as it is equipped with one of the largest terminals in the U.S. and is widely...

The D4 RIN is the tradable compliance certificate for the biomass-based diesel mandate in the Renewable Fuel Standard (RFS). Understanding the price dynamics of the D4 RIN is important for understanding the RFS because its price sets a ceiling on the ethanol RIN (D6) and because some observers...