Trading Mechanisms and Stock Returns: An Empirical Investigation

This paper examines the effects of the mechanism by which securities are traded on their price behavior. We compare the behavior of open-to-open and close-to-close returns on NYSE stocks, given the differences in execution methods applied in the opening and closing transactions. Opening returns are found to exhibit greater dispersion, greater deviations from normality and a more negative and significant autocorrelation pattern than closing returns. We study the effects of the bid-ask spread and the price-adjustment process on the estimated return variances and covariances and discuss the associated biases. We conclude that the trading mechanism has a significant effect on stock price behavior.     

The Effects of Beta,Bid-Ask Spread,Residual Risk,and Size on Stock Returns

Merton's [26] recent extension of the CAPM proposed that asset returns are an increasing function of their beta risk, residual risk, and size and a decreasing function of the public availability of information about them. Associating the latter with asset liquidity and following Amihud and Mendelson's [2] proposition that asset returns increase with their illiquidity (measured by the bid-ask spread), we jointly estimate the effects of these four factors on stock returns.     

Dividends,Taxes, and Signaling: Evidence from Germany

The higher taxation of dividends in the United States gave rise to theories that explain why companies pay dividends. Tax-based signaling models propose that the higher tax on dividends is a necessary condition to make them informative about companies' values. In Germany, where dividends are not tax-disadvantaged and in fact are taxed lower for most investor classes, these models predict that dividends are not informative. However, we find that the stock price reaction to dividend news in Germany is similar to that found in the United States. This suggests other reasons, beyond taxation, that make dividends informative.     

Liquidity,Maturity, and the Yields on U.S. Treasury Securities

The effects of asset liquidity on expected returns for assets with infinite maturities (stocks) are examined for bonds (Treasury notes and bills with matched maturities of less than 6 months). The yield to maturity is higher on notes, which have lower liquidity. The yield differential between notes and bills is a decreasing and convex function of the time to maturity. The results provide a robust confirmation of the liquidity effect in asset pricing.     

Corporate Control and the Choice of Investment Financing: The Case of Corporate Acquisitions

We test the proposition that corporate control considerations motivate the means of investment financing—cash (and debt) or stock. Corporate insiders who value control will prefer financing investments by cash or debt rather than by issuing new stock which dilutes their holdings and increases the risk of losing control. Our empirical results support this hypothesis: in corporate acquisitions, the larger the managerial ownership fraction of the acquiring firm the more likely the use of cash financing. Also, the previously observed negative bidders' abnormal returns associated with stock financing are mainly in acquisitions made by firms with low managerial ownership.     

On the Interaction of Real and Financial Decisions of the Firm Under Uncertainty

This study analyzes the interaction between the optimal level of investment and debt financing. For this purpose, a model is structured in which a firm, facing an uncertain price, has to decide on its optimal level of investment and debt. The amount of investment sets a limit on output whose optimal level is determined after price is realized. The debt involved is risky (there exists a possibility of bankruptcy). The analysis proves that investment and its optimal financing have to be simultaneously determined and that a negative relationship exists between operating and financial leverage. We also demonstrate that as the tax rate increases, optimal capacity decreases and optimal leverage increases. An analysis of the impact of changes in the expected price shows that under some conditions, an increase in expected price would lead to an increase in optimal investment (firm size) and a decrease in optimal debt.     

Volatility,Efficiency, and Trading: Evidence from the Japanese Stock Market

We study the joint effect of the trading mechanism and the time at which transactions take place on the behavior of stock returns using data from Japan. The Tokyo Stock Exchange employs a periodic clearing procedure twice a day, at the opening of both the morning and the afternoon sessions. This enables us to discern the effect of the clearing mechanism from the effect of the overnight trading halt. While the periodic clearing at the beginning of the trading day is noisy and inefficient, the midday clearing transaction appears to be no worse than the two closing transactions.