Nobody can establish who first used the phrase 'evidence-based investing', and no regulator defines it. Robin Powell, who was given the name by Larry Swedroe in 2015 and is sometimes wrongly credited with coining it, sets out what it actually means: four tests of what counts as evidence, borrowed from a medical parallel that hit the same crisis twelve years ago. Including where he goes further than a global tracker, and why he holds that position less firmly than he used to.
New research from the *Review of Financial Studies* covering 56 years of data and eight asset classes shows that the popular inflation hedge — shares, gold, property funds, commodities — only protects against energy inflation. The slow, grinding core inflation that actually erodes purchasing power year after year goes unhedged. Here's what the data say, why the investment industry hasn't fixed it, and what to do instead.
Robin Powell
May 118 min read
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