Grain silos, oil pipelines and copper smelters are not exactly glamorous. Yet for a glorious couple of years up until mid-2008, commodities were all the rage. China was booming, and supplies of everything from soyabeans to iron ore were failing to keep pace, prompting a giddy leap in prices. Financial engineers minted all manner of products tied to these movements. Not only were commodities on a roll, their patter went; they also provided a crucial hedge for any diversified portfolio, since they did not move in tandem with other assets.
展开▼
