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.
Does the January barometer really predict stock market returns? This Wall Street saying claims January's performance forecasts the whole year. But the evidence tells a different story. While the pattern appears accurate roughly 70% of the time, this success rate is misleading — markets rise in most years anyway. Before betting your portfolio on this calendar superstition, discover what the data actually shows.
Robin Powell
Jan 17 min read
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