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.
You check your energy bill religiously. When your provider raised charges by £12, you noticed within days. You've compared broadband three times this year, saving £8 monthly. But when did you last calculate your all-in investment fees? That £3 broadband overcharge equals £36 yearly. A 1% overcharge on a £500,000 portfolio equals £5,000 annually—139 times more. Yet the smaller cost receives obsessive attention whilst the larger goes unexamined for decades. This article reveals
