A multiperiod model of optimal capital structure is developed under the assumption that earnings follow an autoregressive process. Firm value and leverage vary through time and, at each date, the firm achieves an optimal debt level that is a function of the full state contingent debt policy. The reversion parameter of the earnings series is shown to be positively related to various measures of variability and negatively related to leverage. If earnings processes are not homogeneous across firms, then standard earnings risk measures in capital structure studies do not adequately represent crosssectional differences in variability in firm value.

This paper studies distinctions between fixed-price and Dutch auction self-tenders for common stock. We find that fixed-price tenders pay higher premiums to retire greater equity fractions than Dutch offers yet generate similar total returns to stockholders. Accordingly, total returns are significantly higher in Dutch auctions after controlling for tender and firm characteristics. In addition, wealth transfers to owners of repurchased shares are significantly higher in fixed-price offers. The Dutch mechanism thus appears to induce increases in firm value with smaller disbursals of cash. These cost savings to investors who maintain their ownership may explain the popularity of the new technique.