A $200 billion quant fund says one of the biggest concerns about how companies will spend their tax

AQR Capital Management, a quantitative-focused hedge fund overseeing $208 billion, seeks to dispel what it sees as the four biggest myths associated with corporate share repurchases. The firm argues that companies using cash to repurchase stock doesn't hinder economic growth, as has been suggested in recent weeks. One of the arguments against Republicans' proposed tax cuts has been that companies will use excess capital to simply buy back their own shares. To hear detractors of...