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What is evidence-based investing?
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.
Robin Powell
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Rebalancing your portfolio won’t make you richer. Do it anyway
Between shares and bonds, rebalancing your portfolio doesn't raise returns and usually costs a little. Its value is that it makes you buy what has crashed and sell what has soared, which instinct tells you not to do. The US evidence shows when it bites, how often to bother, and how to make it automatic.
Robin Powell
5 days ago7 min read
Why your inflation hedge protects against the wrong kind of inflation
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
How much of your portfolio should be in stocks?
How much of your portfolio should be in stocks? It's one of investing's most important questions — and the standard answer is costing the average investor the equivalent of 2% of their lifetime consumption. Yale economists have finally built something better, and it fits in a spreadsheet.
Robin Powell
Mar 138 min read
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