Traditional capital structure theory predicts that reducing banks' leverage reduces the risk and cost of equity but does not change the weighted average cost of capital, and thus the rates for borrowers. We confirm that the equity of better-capitalized banks has lower beta and idiosyncratic risk. However, over the last 40 years, lower risk banks have not had lower costs of equity (lower stock returns), consistent with a stock market anomaly previously documented in other samples. A calibration suggests that a binding ten percentage point increase in Tier 1 capital to risk-weighted assets could double banks' risk premia over Treasury bills.

We outline a dividend signaling model that features investors who are averse to dividend cuts. Managers with strong unobservable cash earnings pay high dividends but retain enough to be likely not to fall short next period. The model is consistent with a Lintner partial-adjustment model, modal dividend changes of zero, stronger market reactions to dividend cuts than increases, comparatively infrequent and irregular repurchases, and a mechanism that does not depend on public destruction of value, which managers reject in surveys. New tests involve stronger reactions to changes from longer-maintained dividend levels and reference point currencies of American Depository Receipt dividends.