This paper examines the effects of a common stock repurchase on the values of the repurchasing firm's common stock, debt and preferred stock, and attempts to identify the dominant factors underlying the observed value changes. The evidence indicates that significant increases in firm values occur within one day of a stock repurchase announcement. These value changes appear to be due principally to an information signal from the repurchasing firm. Common stockholders are the beneficiaries of virtually all of the value increments, but no class of securities examined declines in value as a result of the repurchase.

This paper provides evidence on the valuation effects of convertible debt issuance. Common stockholders earn significant negative abnormal returns at the initial announcement of a convertible debt offering, and also at the issuance date. In contrast, the average valuation effect on common stock at the announcement of non-convertible debt offerings is only marginally negative, and is zero at issuance. The significant negative average effect on common stock value appears not to be systematically related to either the degree of leverage change induced by the convertible debt issuance or the extent to which the proceeds from issuance are used for new investment or to refinance existing debt. If, as appears likely, the issuance of convertible debt on average increases financial leverage, these results are inconsistent with evidence from other recent studies documenting common stock price effects of the same sign as the change in leverage. The evidence suggests that convertible debt offerings convey unfavorable information about the issuing firms, but the specific nature of such information remains unidentified.

In this paper large block stock transactions are examined in the context of a trading rule devised by Grier and Albin. The study makes use of the actual intra-day history of stock transactions. Considerable effort is taken to correctly incorporate the effects of transaction costs on trading rule profits and evidence is presented on the sensitivity of such profits to variations in these costs. The use of intra-day prices yields results consistent with the weak form of the efficient markets hypothesis and provides important evidence on the speed of price adjustment.

We analyze whether board structure and director independence in closed-end investment companies are related to shareholder interests in ways that are consistent with boards being effective monitors. We report that funds with relatively low expense ratios, one measure of board effectiveness, have smaller boards, a higher proportion of board members who are legally considered independent, relatively low director compensation, and charter provisions that specify remedial action if discounts become large. Evidence from our analysis of major fund restructuring decisions, including share repurchases, open-ending proposals and right offerings, is largely consistent with the expense ratio analysis. Overall, board characteristics that we identify with effective board independence are associated with lower expense ratios and value-enhancing restructurings.

This paper presents evidence that stockholder wealth declines on average when managers respond to attempted hostile takeovers with defensive changes in asset and ownership structure. The data also indicate that these corporate restructurings are typically quite large and that many are attempts by managers to create barriers specific to the hostile bidder and /or to consolidate a block of voting securities in the hands of management allies. The evidence suggests that defensive motives (whether beneficial or harmful) influence corporate asset and ownership structure.

Standstill agreements are voluntary contracts which limit a substantial stockholder's ownership interest in a corporation for a specified number of years. They are often accompanied by repurchase of the substantial stockholder's shares at a premium above the market price. Standstills and premium buybacks reduce competition for corporate control and provide differential treatment of large block stockholders. The analysis indicates a statistically significant negative average effect on non-participating stockholder wealth associated with standstill agreements. Negotiated premium repurchases are also associated with negative, but less significant, stockholder returns. The evidence is inconsistent with the hypothesis that these management actions are in the best interests of non-participating stockholders.

Announcements of stock repurchase tender offers are examined as a source of information about firms' future earnings prospects and market risk levels. We document positive earnings surprises and equity systematic risk reduction following tender offers. Announcement stock price reactions are positively correlated with earnings surprises over the concurrent and subsequent two years, and negatively correlated with changes in equity market risk. Finally, stock price reactions to quarterly earnings announcements are more strongly correlated with time-series based earnings surprises in the year prior to the tender offer than during the subsequent year, consistent with tender offer announcements conveying earnings information.