CHAPEL HILL, N.C. — Investors don’t shed their political biases when they start buying and selling stocks. And that’s a surprise, since you’d otherwise think that the prospect of losing money would impose a stark objectivity on investment decision-making. After all, to state the obvious, the stock you buy or sell doesn’t know your political affiliation. Nevertheless, evidence continues to mount that we are just as biased when in our brokers’ offices as in […]