Most active fund managers fail to beat their benchmark index. But it's worse than that. That benchmark is often weighted by market value, meaning the most expensive stocks are overweighted. Tim Edwards, director of index strategy at S&P Dow Jones Indices, tells John Authers that equal-weighted indices would make a better, and tougher, benchmark.
Filmed by Rod Fitzgerald and Nicola Stansfield. Produced by Darryl Thomson.
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