Efficiency outcomes of market concentration and managed care

The paper examines how hospital cost efficiency has reacted to extensive horizontal integrations of hospitals and rapid growth of managed care in the US health care industry. Cost efficiency is estimated by using panel data approaches to relax the assumptions for the hospital effects imposed in earlier studies. The paper shows that higher managed care penetration over time is associated with greater hospital efficiency, and higher market concentration is positively associated with efficiency when markets are highly competitive or highly concentrated.     

Financial contracts,opportunism, and disclosure management

This article shows that if all variables that determine a firm's future cash flows are not contractible, it can be ex ante optimal to design a financial contract that admits debtholders waiving debt covenants on a discretionary basis and firms investing opportunistically subsequent to contracting. Further, as the contractible variable becomes less informative, the contract attaches greater significance to it. Finally, uncertainty in the magnitude of reporting latitude induces aggressive reporting by the firm to avoid violating the covenant or to enhance the chances of a waiver. The debtholders respond by sometimes not allowing the firm to implement mutually beneficial projects.     

Does investor protection affect the choice of earnings management methods through real activity manipulation and accrual manipulation？ Asian comparison

This paper examines systematic differences in earnings management through real activity manipulation and accrual manipulation across 7 Asia countries. The study proposes arguments that in economies with high investor protection, managers prefer to manage earnings through real activity manipulation rather than through accrual manipulation because accrual manipulation is more likely to draw auditors or regulators scrutiny than real decisions about pricing and production. The study findings are consistent with prediction. Despite being in economies with high investor protection, managers still have bigger discretion in managing earnings through real activities rather than accrual manipulation.     

Tunneling, overlapping owner and investor protection： Evidence from merger and acquisition in Asia

Tunneling is to describe transfer resource out of the firm for benefit of their controlling shareholders. Better legal protection and stronger social norms improve minority shareholders＇ protection from expropriation. They consequently reduce the private benefits of controlling shareholders （La Porta, 1999）. This study aims to investigate tunneling in the context merger and acquisition （M＆A） and to examine whether tunneling occurs only in emerging markets with poor law enforcement or whether it also occurs in developed countries. This study documents that managers are more likely to overpay target in merger and acquisition with high overlapped owner which have stakes in bidder and target firm. That overpayment, a transfer of wealth from owners of bidder＇s firm to overlapping owners, is a type of tunneling. This study concludes that tunneling occurs in nations not only with low investor protection, but also with high investor protection.     

Gravity Models of Interregional Migration in Indonesia

This article explores the determinants of interregional migration in Indonesia. Employing basic and modified (extended) gravity models, and using data from the 2000 and 2010 Population Censuses and the 2005 Intercensal Population Survey, we test Long’s (1985) hypothesis that in the early stages of population redistribution, economic development is positively related to a concentration of the population. Using per-capita GDP as a proxy for income and as an indicator of economic development, we find that migration in Indonesia is indeed directed towards more developed regions. This finding supports the notion that regional disparities in development are an important factor in interregional migration in Indonesia. In line with classical gravity models, our findings show that distance is negatively related to the size of migration flows. However, unlike previous studies of interprovincial migration in Indonesia, we find that the effect of distance has weakened over time.     

Dynamic routing of time-sensitive air cargo using real-time information

The route planning of time-sensitive air-cargo is becoming more important with the growing air-network congestion and delays. We consider a freight forwarder’s routing of a time-sensitive air-cargo in the presence of real-time and historical information regarding flight availability, departure delays and travel times. A departure delay estimation model is developed to account for real-time information inaccuracy. A novel Markov decision model is formulated and solved with online backward induction. Through synthetic experiments and case studies, we demonstrate that dynamic routing with real-time information can improve delivery reliability and reduce expected cost.     

祝福旅游时代

《旅游时代》是我每月必读的一本杂志,我很高兴在斯里兰卡使馆每月都可以看到这本杂志。我们会认真阅读每一期,从中得到感兴趣的信息并获益。     

Uncertainty and the Choice of Policy Instruments: A Note On Baumol and Oates Propositions

Baumol and Oates' propositions, the irrelevancy of benefit uncertainty and the importance of cost uncertainty on the choice between a tax and a system of marketable permits, are limited to a large-number case in which the opportunities for victims of pollution to participate in a permit market are non-existent. However, with the evolution of environmental groups and coalitions of victims in neighborhoods, the large-number case can easily transform into a small-number case. This paper shows that when the pollution standard, set at what appears to be optimal ex ante, is excessively lenient, the system of marketable permits offers such groups a flexibility to buy pollution permits in a competitive market and destroy them until the optimal solution is realized. In the reverse situation, however, Baumol and Oates propositions are unambiguously valid.     

Leisure Involvement,Job Satisfaction,and Service Performance among Frontline Restaurant Employees

The importance of employee leisure involvement to employee service performance has been suggested but not tested in the literature. This study closes this research gap by inspecting the direct consequence of leisure involvement on service performance and leisure involvement’s indirect effect on service performance via job satisfaction for frontline service employees. This study uses a sample of 313 restaurant employees collected from Bandung, Indonesia. The proposed model is tested using variance-based SEM-PLS. The results show the importance of leisure involvement as a determinant of frontline service performance. Moreover, this study reveals that the effect of leisure involvement on service performance is partially mediated by job satisfaction. The conceptual and practical significance of these results are reviewed.