The dangers of reviewing your portfolio too often - The Globe and Mail

The dangers of reviewing your portfolio too often - The Globe and Mail: "Brandes Investment Partners, the fund company, has recently done work based on insights from the Nobel prize winner Daniel Kahneman, known for his work on “prospect theory.” This theory demonstrates that investors feel losses twice as much as they do gains. As a result, the stress of losses can cause emotions to kick in and make investors abandon investments, even ones they intended to hang on to for the long term"