Are alpha commodity index products sustainable?

The third generation

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In the beginning, things were simple when it came to index products. Back in 1991, Wall Street bankers created the Goldman Sachs Commodity Index (now called the S&P GSCI) to track the prices of a basket of 24 commodities. In the years that followed, the financial industry produced a wide array of products linked to the S&P GSCI that allowed investors to get exposure to commodity prices without having to hold physical barrels of oil, bushels of wheat and so on. Academics, fund managers and financ