This article reviews the literature on commodities from the perspective of an investor. We re-examine some of the early papers in the literature using recent data and find that the empirical support for the theory of normal backwardation as an explanation for the commodity risk premium is weak...

"This paper finds that, concurrent with the rapid growing index investment in commodities markets since early 2000s, futures prices of different commodities in the US became increasingly correlated with each other and this trend was significantly more pronounced for commodities in the two...