The effects of executive compensation and outside monitoring on firms’ pre-repurchase disclosure behavior and post-repurchase performance

Review of Quantitative Finance and Accounting - We show that corporate governance mechanisms play an important role in controlling managers’ opportunistic behavior. Low executive equity...     

Pregnancy outcomes for medicaid patients in mandatory managed care: The Pennsylvania HealthChoices program

A number of states have adopted mandatory managed care to provide health services to Medicaid patients, raising concerns that the care provided may be of lower quality than care provided under traditional fee‐for‐service arrangements. In this article, we study the effect of Pennsylvania's mandatory managed care program, HealthChoices, on health outcomes and the cost of care for pregnant Medicaid patients. Using difference‐in‐differences, we find evidence that the adoption of managed care resulted in fewer preventable complications, particularly for more severely ill mothers, but no general reduction in costs except in the highest decile of the cost distribution.     

区域人口社会经济系统动态仿真模型研究

信息化是 2 1世纪国际竞争的焦点 ,世界上许多国家和地区都对其社会信息化水平进行了测定。本文建立一测定模型 ,对浙江省信息化水平进行测定及分析 ,给出了推进浙江省社会信息化建设的建议     

A Bayesian Approach to Modeling Purchase Frequency

Direct marketers are often faced with the task of ranking, or scoring individual customers in terms of their expected value to the firm. A critical element of their scoring systems is expected frequency of customer interaction. In this paper the authors develop a hierarchical Bayes model of purchase frequency that combines a Poisson likelihood with a gamma mixing distribution, where the mixing distribution is a function of covariates. The proposed model is evaluated with two direct marketing datasets, and is shown to provide improved estimates of purchase frequency, particularly for customers with short purchase histories or who have infrequent interaction with the firm.     

Yield measure for the process with multiple streams

Process capability indices, such as C _pk , have been widely used in the manufacturing industry to provide common quantitative measures for process performance. The index C _pk only provides an approximate rather than an exact measure of the process yield. To obtain an exact measure of the process yield, Boyles proposed a yield index S _pk . Capability measures for processes with single stream have been investigated extensively; however, multiple streams processes often occur in practice. Bothe presented a capability index for multiple streams process. In the present paper, a new index that is able to provide an exact measure of yield for a multiple streams process is developed. Three examples are given for illustration. From the results of the yield measure in the three examples, the conventional approach, using the arithmetic average of the estimated yield indices of all streams, will certainly over-estimate the process yield.     

Family-friendly policies in the workplace and their effect on work–life conflicts in Hong Kong

As in many other big cities, employees in Hong Kong face competing demands from their work and family and are under a tremendous conflict between work and life. Recently, the Hong Kong Special Administrative Region Government has put a lot of effort into promoting family-friendly policies, but the availability and effectiveness of these policies are largely unknown. The social distribution of work–life conflicts across social status and the dimensions of stratification in Hong Kong have already been documented. This paper examines these issues by way of a telephone survey of over 1000 employees in Hong Kong. We argue that certain groups of workers are particularly vulnerable to work–life conflicts, and target interventions must be devised to address their needs. Moreover, we also suggest that a regulatory approach to implementing family-friendly policies must be undertaken once implementation on a voluntary basis has failed, owing to the low availability of family-friendly policies in the Hong Kong workplace. Lastly, we show the effectiveness of three measures – namely flexible work time, a five-day work week and career breaks – in reducing both work–life conflicts and their negative consequences. We argue that more rigorous randomized intervention must be undertaken to provide more conclusive evidence so as to convince employers to implement these policies in their enterprises.     

Application of fuzzy regression on air cargo volume forecast

This paper presented a Fuzzy Regression Forecasting Model (FRFM) to forecast demand by examining present international air cargo market. Accuracy is one of the most important concerns when dealing with forecasts. However, there is one problem that is often overlooked. That is, an accurate forecast model for one does not necessarily suit the other. This is mainly due to individual’s different perceptions toward their socioeconomic environment as well as their competitiveness when evaluating risk. Therefore people make divergent judgments toward various scenarios. Yet even when faced with the same challenge, distinctive responses are generated due to individual evaluations in their strengths and weaknesses. How to resolve these uncertainties and indefiniteness while accommodating individuality is the main purpose of constructing this FRFM. When forecasting air cargo volumes, uncertainty factors often cause deviation in estimations derived from traditional linear regression analysis. Aiming to enhance forecast accuracy by minimizing deviations, fuzzy regression analysis and linear regression analysis were integrated to reduce the residual resulted from these uncertain factors. The authors applied α-cut and Index of Optimism λ to achieve a more flexible and persuasive future volume forecast.     

Strategic Delegation and Vertical Integration

This paper proposes a game‐theoretic model to analyze owners' vertical integration choices if they delegate pricing decisions to their managers. We find that all three vertical structures are possible Nash equilibrium outcomes. If the products are weak substitutes, then the outcome is that both owners adopt vertical integration. When the products are close substitutes, both owners adopt vertical separation in equilibrium. When substitution between the products is medium, the coexistence of vertical integration and vertical separation is the equilibrium outcome, and the owner corresponding to vertical separation offers exactly a profit‐maximization contract to his or her manager under this situation. Copyright © 2014 John Wiley & Sons, Ltd.     

The long-term performance following dividend initiations and resumptions revisited

Previous studies have documented that an announcement of dividend initiation and resumption is associated with an increase in stock price, while Boehme and Sorescu (J Finance 47:871–900, 2002) argue that the dividend anomaly only occurs by chance. However, their sample contains firms listed within 3 and/or 5 years of their respective initial public offering (IPO) dates, as well as regulated firms. We conjecture that the confounding effects of IPOs and regulated firms may interfere with the increase in stock prices due to dividend initiations and resumptions and bias their results. We thus reexamine the long-term stock performance following dividend initiations and resumptions by excluding newly IPO firms and regulated firms. We find no evidence that the non-robust positive price drifts for firms, which initiate or resume cash dividends, is due to the confounding effects of IPOs and regulated firms. Therefore the price drifts after dividend initiation and resumption announcements may be a sample-specific result of chance, even after controlling for possible sample selection biases.