In soft dollar arrangements, the brokerage commissions are generally higher than they would be for an "execution only" trading relationship, and over time investment performance may suffer by the higher commission cost. Because institutional funds can trade a significant number of shares every day, the soft dollars add up quickly. Over time, investment performance may deteriorate if the soft dollars are not used to purchase research that enhances performance. However, many believe that as long as full disclosure is made, clients will gravitate to managers that use an appropriate mix of soft dollar and other arrangements.