Paying not to sell

In this paper we show that, in the presence of buyer and seller power, a monopolist can enter into a costly contractual relationship with a low-quality supplier with the sole intention of improving its bargaining position relative to a high-quality supplier, without ever selling the good produced by that firm.     

Parametric Value-at-Risk analysis: Evidence from stock indices

We evaluate the performance of several volatility models in estimating one-day-ahead Value-at-Risk (VaR) of seven stock market indices using a number of distributional assumptions. Because all returns series exhibit volatility clustering and long range memory, we examine GARCH-type models including fractionary integrated models under normal, Student-t and skewed Student-t distributions. Consistent with the idea that the accuracy of VaR estimates is sensitive to the adequacy of the volatility model used, we find that AR (1)-FIAPARCH (1,d,1) model, under a skewed Student-t distribution, outperforms all the models that we have considered including widely used ones such as GARCH (1,1) or HYGARCH (1,d,1). The superior performance of the skewed Student-t FIAPARCH model holds for all stock market indices, and for both long and short trading positions. Our findings can be explained by the fact that the skewed Student-t FIAPARCH model can jointly accounts for the salient features of financial time series: fat tails, asymmetry, volatility clustering and long memory. In the same vein, because it fails to account for most of these stylized facts, the RiskMetrics model provides the least accurate VaR estimation. Our results corroborate the calls for the use of more realistic assumptions in financial modeling.     

The Role of Accountants in Decision-Making in Lebanese Firms

The issue of accountants＇ role in decision-making has been the center of attention of lots of studies in the last decade but never did it get the adequate coverage in Lebanon. This paper studies to what extent accountants are involved in the managerial decision-making in Lebanon. Two hundred experienced accountants from all over the country were randomly selected for a questionnaire survey. This survey provides evidence as to what factors contribute to the variance of influence accountants have in managerial decision-making. The results from the questionnaires varied, but we conclude that accountants＇ involvement in new product development （NPD）, the skills that accountants have, their role in the financial analysis of the firm, and how much the finn they work for encourages them to advice on business decisions affect the degree of contribution an accountant has to decision-making. The findings of this research could be used as a reference to help in understanding the role of accounting in Lebanon by various finns and organizations.     

Sovereign bond market dependencies and crisis transmission around the eurozone debt crisis: a dynamic copula approach

We examine the dependency between the European government bond markets around the recent sovereign debt crisis. A dynamic copula approach is used to model the time-varying dependence structure of those government bond markets, evaluate the nature and strength of their dependencies over time, and gauge the transmission of the crisis shocks. Our results can be summarized as follows: i) the eurozone sovereign bond markets under consideration have a significant and positive dependence with the Greek and the EMU benchmark sovereign bond markets; ii) the dynamic-BB7 copula function best describes the dependence structure between these sovereign bond markets and provides evidence of asymmetric tail dependence; iii) the conditional probability of crisis transmission from Greece to other eurozone countries is higher than the other way around; and iv) Greece is the most vulnerable country when the eurozone entered into the sovereign debt crisis.     

Validity of parent's self-reported responses to home safety questions

The aim of the study was to describe the validity of parent's self-reported responses to questions on home safety practices for children of 2–4 years. A cross-sectional validation study compared parent's self-administered responses to items in the Home Injury Prevention Survey with home observations undertaken by trained researchers. The relationship between the questionnaire and observation results was assessed using percentage agreement, sensitivity, specificity, positive predictive value, negative predictive value and intraclass correlation coefficients. Percentage agreements ranged from 44% to 100% with 40 of the total 45 items scoring higher than 70%. Sensitivities ranged from 0% to 100%, with 27 items scoring at least 70%. Specificities also ranged from 0% to 100%, with 33 items scoring at least 70%. As such, the study identified a series of self-administered home safety questions that have sensitivities, specificities and predictive values sufficiently high to allow the information to be useful in research and injury prevention practice.     

Syrian women accountants’ attitudes and experiences at work in the context of globalization

The purpose of this study is to explore how globalization is impacting on the experiences of Syrian women accountants working in the accounting and finance professions. The study uses postcolonial theory to interpret face-to-face in depth interviews with female accountants and in particular their experiences and attitudes regarding wearing or not wearing the hijab in Syria. Insights from the interviews reveal that Syrian women accountants have been able to use the practice of veiling in order to negotiate greater opportunities for access to work in a patriarchal context. Nonetheless, the increased influence in recent years of private/Western accounting and finance firms has mainly hindered women, especially veiled women’s ability to access and progress at work. The study suggests that the issue of female clothing for Muslim women is still overemphasized in the East and West. The paper argues for the need to go beyond the politics of the hijab and to focus on addressing broader socio-political, cultural and global conditions that are contributing to Syrian women’s marginalization in the accounting and finance professions, and beyond.     

Translation invariance when utility streams are infinite and unbounded

The translation‐invariance axiom consists in asserting the invariance of the ranking of two utility streams if one applies the same translation to both. This axiom is significant in the characterization of utilitarian criteria in finite dimension. This characterization is achieved thanks to the weak weighted utilitarianism theorem. The objective here is to extend this theorem to a space of infinite and unbounded utility streams. In the context of intergenerational choice, a consequence of the suggested generalization is that every maximal point with respect to a Paretian utilitarian order granting comparable considerations to the present and the future, is also a maximal point with respect to some future‐oriented criterion.