Private information imposes a severe trading disadvantage on uninformed traders while at the same time providing firms with valuable signals for investment adjustment. The two forces have opposite impacts on the cost of capital, and the net effect depends on which force dominates. We show that...

We investigate the cost of capital in a model with an agency conflict between inside managers and outside shareholders. Inside ownership reflects the classic tradeoff between incentives and risk diversification, and the severity of agency costs depends on a parameter representing investor...