The present value equation in finance is shown to be equivalent to the Laplace transformation in mathematics. Based on this observation, the list of known analytic solutions for the present value problem is increased from a handful to more than one hundred. General properties of the Laplace transform are examined as well in light of the newly discovered significance for finance.
In this article we examine the information content in analysts' recommendations which are made on a five-point buy, hold, or sell scale. Our data set includes data on 10,000 forecasts per month. Unlike most prior studies, our data set does not suffer from selection or survivorship bias. We find information in analysts' changes in recommendations. Approximately 4.5% extra return can be earned by purchasing new buys rather than new sells.
Duality theory is employed to provide necessary and sufficient conditions for portfolios on the minimum‐variance frontier to have positive investment proportions in all assets. These conditions involve the feasibility of portfolios that have non‐negative correlation with all assets and positive correlation with at least one. Using these results, several “qualitative” results concerning the signs of investment proportions in efficient portfolios are proved. It is argued that the conditions that ensure all‐positive weights in efficient portfolios are intuitively compelling and are not unique to the CAPM. With large numbers of assets, however, the signs of weights in minimum‐variance portfolios can be very sensitive to slight departures from these conditions due to, for example, sampling error.
Recent theoretical work on the bid-ask spread asserts that the dealer should widen the bid-ask spread when he or she suspects that the information advantage possessed by informed traders has increased. Thus, the dealer's spread can be employed to test for an increase in information asymmetry prior to an anticipated information event. In this paper, the method is applied to earnings and dividend announcements, which have been documented to be information events. The authors study three groups of announcements: (a) joint announcements—i.e., earnings and dividend announcements that are made on the same day, (b) initial (first) announcements—earnings or dividend announcements that were not preceded by another announcement in the prior thirty days, and (c) following (second) announcements—those announcements that follow the first announcement by at least ten days but by no more than thirty days. The authors find a strong increase in information asymmetry only before the second announcements and virtually no increase before the joint and first announcements. This is consistent with the hypothesis that there is, on average, normal information asymmetry before announcements, but that the dealer will suspect a nonroutine announcement (with an attendant increase in information asymmetry) when the second announcement is separated from the first by more than ten days. Other possible explanations for the results are discussed, and suggestions for future research are outlined.
This paper examines the impact of capital structure changes which have no corporate tax consequences. Specifically, exchange offers involving preferred and common stock are analyzed. We find that systematic changes in firm value occur when companies announce preferred‐for‐common exchange offers. Consequently, we interpret our results to be consistent with a signalling hypothesis. We also find weaker evidence suggesting the existence of agency cost effects or wealth redistributions across security classes. Our findings imply that capital structure changes need not alter the tax status of the issuing firm to affect firm value.
This paper investigates the effect of inflation on a firm's investments in fixed assets. When future prices are certain, inflation affects the present value of depreciation tax shields, and the impact of inflation on the choice between different lived assets is nonmonotonic. Future asset price uncertainty creates a valuable switching option and benefits shorter‐lived assets.
Studies relating accounting and price data often use the COMPUSTAT or related PDE data base as the source for the accounting data. This practice may introduce a look-ahead bias and an ex-post-selection bias into the study. We examine this problem by comparing results from the standard COMPUSTAT data base with those from a data base which suffers from neither bias. We find that rates of return from portfolios chosen on the basis of accounting data from the two data bases differ significantly. Further, we find that these differences imply different conclusions when we test a specific hypothesis relating accounting and price data. Finally, we propose a number of remedies which may reduce the bias when the standard COMPUSTAT data base is used.
This paper tests the effectiveness of techniques proposed by: Scholes‐Williams; Dimson; Fowler, Rorke, and Jog; and Cohen, Hawawini, Maier, Schwartz, and Whitcomb to control for bias in beta estimates from thin trading and price adjustment delays. Each technique produces beta estimates that reduce the amount of this bias, but the amount of reduction in the best case is only 29%.
This paper addresses the issue of whether firms are required to pay an ex ante premium to investors for bearing the risk of interest-rate changes. A two-factor APT model with the market and changes in the yield on long-term government bonds as factors is employed. The paper shows that, empirically, most of the interest-sensitive stocks are in the utility industries, and that there is reasonable evidence that the interest factor is priced in the sense of the APT. Several sources for the interest sensitivity are considered, and regulatory lags are focused on as a likely candidate.
The pricing of new corporate bond issues is examined, with particular emphasis on the seasoning effect and the cost of underwriting. Considerable attention is paid to some special features of the corporate bond market, including the use of actual trader quotes so as to accurately measure holding period returns. Our results suggest that the cost of issuing corporate bonds is less than previously reported.