Look around the investing world and biases are pervasive, from clustering estimates around company guidance (anchoring) to avoiding a stock that has already outperformed (mental accounts). And these biases make a difference. Biases creep into the investment...

Susanne Posel/Occupy Corporatism According to a government panel, entitled the US Preventative Services Task Force (USPSTF), doctors need to consider a patient’s body mass index (BMI) a vital sign that should be monitored as readily as blood...