An article in The Wall Street Journal yesterday (14 May) discussed whether or not the long-running bull market in commodities is over. The writer, Liam Pleven, used the DJ-UBS index of prices for key commodities as the basis from which the question arises. The DJ-UBS Index, which tracks 19 key commodities and other popular commodity price indexes, suggest that commodities began a broad upward price move in early 1999. Commodity prices continued to move higher in an irregular pattern until 2008, when they abruptly collapsed along with the prices of nearly everything else as the U.S. economy lurched into a deep recession. The DJ-UBS index began to recover in 2009. That lasted until late 2011 when the Index turned down again.The question as...