Econbrowser readers will know that I’ve long been interested in how derivatives like futures predict commodity prices. An early paper on energy futures, coauthored with my former CEA colleagues Michael LeBlanc and Oli Coibion, was summarized in this 2006 post (paper here). Recently, Oli Cobion and I have updated and expanded our examination, to incorporate for the most recent data, account for GARCH effects, alloow for time variation, and to try to explain why there has been time variation in the deviations in the unbiasedness proposition.
From the abstract to our paper:
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