Knowledge that Transforms

Results of the theory of individual optimal consumption-investment choice under uncertainty are extended to a class of intertemporally dependent preferences for consumption streams. These results are then used to show that with intertemporally dependent preferences, which are more realistic than the separable time-additive preference structure, Merton's (1973) multi-beta intertemporal capital asset pricing model is still valid, but it can no longer be collapsed to Breeden's (1979) single consumption-beta model.

Financial economists are interested in whether alternative compensation plans are adopted primarily for tax, incentive or signaling reasons. As most compensation plans have tax implications, examining for other effects is difficult. In this paper we examine the stock market reaction to employee stock purchase plans which are ‘non-tax advantageous’ and adopted for incentive/signaling reasons. The results suggest that (1) equity-based compensation schemes have a positive effect on shareholder wealth for reasons other than tax reduction, (2) a motive for adopting these plans is to align managerial and shareholder interests, and (3) equity ownership motivates key executives more than subordinate employees.

This paper is an ‘event-time’ study of the common stock prices of a sample of 658 corporations around the dates on which they publicly announced their future capital expenditure plans. For industrial firms, announcements of increases (decreases) in planned capital expenditures are associated with significant positive (negative) excess stock returns. For public utility firm, neither increases nor decreases in planned capital expenditures are associated with significant excess stock returns. We interpret the evidence as being consistent with the hypothesis that managers seek to maximize the market value of the firm in making their corporate capital expenditure decisions.

Carl Icahn, Irwin Jacobs, Carl Lindner, David Murdock, Victor Posner, and the late Charles Bluhdorn are usually portrayed as corporate ‘raiders’. The evidence here, however, shows that between 1977 and 1982 when it was first announced that they had purchased stock in a given firm, stock prices on average increased significantly. The investors' activities in target firms for the two years following the initial stock purchase are likewise inconsistent with ‘raiding’. We discuss two hypotheses that are consistent with the evidence: first, these investors improve the management of target firms; second, they are systematically able to identify under-priced stocks.

We investigate the firm size effect for the period 1958 to 1977 in the framework of a multi-factor pricing model. The risk-adjusted difference in returns between the top five percent and the bottom five percent of the NYSE firms is about one to two percent a year, a drop from about twelve percent per year before risk adjustment. The variable most responsible for the adjustment is the sensitivity of asset returns to the changing risk premium, measured by the return difference between low-grade bonds and long-term government bonds.

This study examines the empirical relation between stock returns and (long-run) dividend yields. The findings show that much of the phenomenon is due to a nonlinear relation between dividend yields and returns in January. Regression coefficients on dividend yields, which some models predict should be non-zero due to differential taxation of dividends and capital gains, exhibit a significant January seasonal, even when controlling for size. This finding is significant since there are no provisions in the after-tax asset pricing models that predict the tax differential is more important in January than in other months.

This paper hypothesizes that the risk per unit of time and the required rate of return are higher than normal during an event period whose timing can be predicted. Consistent with this hypothesis this paper presents empirical evidence indicating that the unconditional mean rate of return, the variance of stock returns and their systematic risk are higher than ‘usual’ during dividend announcement periods. However, the documented increases in the systematic risk are not large enough to fully explain the ‘excess returns’. This finding is puzzling and hard to reconcile with existing theory.

Miller and Scholes (1978) hypothesize that the marginal tax rate on dividend income may be less than the marginal rate of tax on capital gains. Their hypothesis is dependent upon individuals utilizing existing provisions of the Code which serve to reduce the taxation of dividends. In this study, estimates of the marginal and effective rates of tax on dividend income for the year 1979 are presented using the Statistics of Income sample of returns. The average marginal rate of tax on dividend income is estimated to be 40%, while the average effective rate of tax is estimated to be 30%.

Duration is a value-weighted measure of average maturity which is commonly associated with portfolios of fixed-income securities. However, the concept finds application in option pricing theory also. This article shows that if options are valued by the Black (1976) formula and a comparative-statics methodology is employed, then the interest rate sensitivity of a portfolio of European options is equal to its duration. If the options are instead valued through the Black-Scholes (1973) formula, then the interest rate sensitivity is equal to only the ‘bond-equivalent duration’ inherent in a dynamic replication strategy for the option portfolio.

In this paper we provide a model of the underwritten offerings of new shares of seasoned securities. Our purpose is to explain why the offering price chosen by the underwriter is lower than the market price of the firm's shares. Our model recognizes the interdependence between the markets surrounding the announcement and sale of the new issue and recognizes as well the effect which asymmetric information regarding investor demands has upon the prices in these markets.