Day-of-the-Week Effects in the Long-Run Performance of Initial Public Offerings

This study examines the influence of day-of-the-week patterns in security returns on long-run IPO underperformance. Comparisons are made between the IPOs in Ritter's [20] database, and a constructed set of matching firms based on SIC code and size, using NYSE, AMEX, and NASDAQ securities. It is found that virtually all of the IPO underperformance occurs on Mondays and Tuesdays and that the degree of underperformance significantly differs from other days. Thus, a common explanation may exist for the general day-of-the-week pattern in security returns and IPO long-run underperformance.     

The Time-Series Behavior of IPO Betas

We examine individual IPO betas and provide further evidence that the documented decline in IPO betas results primarily from a seasoning or information effect and not from the delisting of high beta securities. We employ stochastic coefficient regression analysis which permits the estimation of individual IPO betas at all points in time, and therefore avoids disadvantages associated with grouped cross-sectional beta estimates and average individual time-series beta estimates. We find that IPO firms with the lowest betas are more likely to delist, and that individual IPO betas, on average, decline over time which provides support for the information hypothesis.     

Alternative constructions of Tobin's q: An empirical comparison

Although Tobin's q is an attractive theoretical firm performance measure, its empirical construction is subject to considerable measurement error. In this paper we compare five estimators of q that range from a simple-to-construct estimator based on book-values to a relatively complex estimator based upon the methodology developed by Lindenberg and Ross (1981). We present comparisons of the means, medians and variances of the q estimates, and examine how robust sorting and regression results are to changes in the construction of q. We find that empirical results are sensitive to the method used to estimate Tobin's q. The simple-to-construct estimator produces empirical results that differ significantly from the alternative estimators. Among the other four estimators, one developed by Hall (1990) produces means that are higher and variances that are larger than the three alternative estimators, but does approximate those estimators in most of the empirical comparisons. Those three alternative q ratio estimators, furthermore, produce empirical results that are robust.     

我国小型农田水利建设和管理机制:一个政策框架

根据对我国小型农田水利发展历史经验的梳理,基于对11个省份小型农田水利发展现状的全面调查,提出小型农田水利建设和管理机制的总体政策框架。必须以提高水利保障能力和保障农民用水权益为核心,明确小型农田水利的公益性质,明晰政府应承担的责任,加大公共财政投入力度,加快在资金投入、工程建设、建后管护等方面形成新机制,保证小型农田水利工程的正常运行和效益可持续发挥。     

THE MARKET REACTION TO STRAIGHT DEBT ISSUES: THE EFFECTS OF FREE CASH FLOW

In this paper we measure the market reaction to 937 straight debt issues between 1983 and 1993. We find a negative and significant market reaction to a straight debt announcement. In addition, we find that the market reaction to a straight debt issue is directly related to the issuing firm's level of existing cash and inversely related to the issuing firm's investment opportunities.     

The Role of Alternative Methodology on the Relation Between Portfolio Size and Diversification

An important concern in portfolio management is the number of securities needed to create a well-diversified portfolio. The number of securities that constitute a welldiversified portfolio, however, varies widely among studies. It is demonstrated that past conclusions are highly sensitive to the methodology used in quantifying diversification. This finding motivates the development of alternative methods that reduce the effect of repeated replications on test results. The first approach exploits the power curves of statistical tests, whereas the second approach suggests the use of more robust statistics. Both approaches provide researchers with guidance in the design of future diversification studies.