Understanding the leadership perceptions of staff in China's hotel industry: Integrating the macro- and micro-aspects of leadership contexts

The objective of this paper is to understand the leadership perceptions of staff in China's hotel industry. This study integrates the macro- and micro-aspects of leadership contexts by identifying the contextual variables that affect leadership perceptions. In leadership research, industry setting, the hierarchical levels of an organization, and national culture are recognized as the contextual constraints that affect leadership perceptions, and these constraints were used in this empirical study. Four factors emerged from the factor analysis of a survey study: professionalism; integrity; masculinity or yang; and femininity or yin. A key finding indicates that both the industry setting and the hierarchical levels of an organization affect professionalism. Implications for the training and development of future international hospitality leaders and local staff are considered.     

Outlet types and the Canadian Consumer Price Index

Recent phenomenal growth in popularity of large warehouse/discount stores has important implications for price measurement. Consumer substitution to such outlets could produce a bias in consumer price indexes (CPIs), which may be exacerbated by unrepresentative sampling and discount outlets' apparent slower rates of price increases. It is shown that in 1990-96 unit value indexes rose at a lower rate than the corresponding Canadian CPI subaggregate indexes for other household equipment, non-prescribed medicines, and audio equipment, and biases arising from unrepresentative sampling and differential rates of price increases across outlets have resulted in an additional overstatement for these subaggregates.
La croissance dans la popularité des magasins/entrepôts à forts escomptes au cours des der;chnières années a été fort importante et a eu des effets importants sur la mesure des prix. Le comportement du consommateur qui choisit ces magasins pourrait entraîner un biais dans la mesure des indices de prix à la consommation. Un échantillonage non représentatif et le fait que ces magasins semblent avoir des augmentations de prix plus faibles dans le temps peuvent biaiser encore plus les indices. Cette recherche montre que entre 1990 et 1996 les indices de la valeur unitaire ont cru à un taux plus faible que les indices correspondant de prix à la consommation pour des sous-agrégats comme autre ´equipement des ménages, médicaments non-prescrit, et ´equipement audio. Il semble que les biais engendrés par les différentiels de croissance des prix entre magasins et un échantillonnage non représentatif se soient traduits par un biais à la hausse dans ces sous-agrégats     

The experience of teleworking: an annotated review

The paper reviews the contemporary literature on the experience of teleworking. Particular attention is paid to the socializing aspects of work and its comparative absence when working from home; economic considerations, both for homeworkers and for the firms; work satisfaction and motivation; supervision; roles and gender issues in homeworking; the organization of time and space; and, lastly, questions of self-discipline. The evidence reviewed is based on various teleworking trials conducted mainly during the 1980s; this information is supplemented by original research conducted by the authors which investigated the pros and cons raised by British Telecom operators who were due to take part in a teleworking trial. These operators anticipated many of the issues faced by those who actually had teleworking experience.     

Inference with dependent data using cluster covariance estimators

This paper presents an inference approach for dependent data in time series, spatial, and panel data applications. The method involves constructing t and Wald statistics using a cluster covariance matrix estimator (CCE). We use an approximation that takes the number of clusters/groups as fixed and the number of observations per group to be large. The resulting limiting distributions of the t and Wald statistics are standard t and F distributions where the number of groups plays the role of sample size. Using a small number of groups is analogous to ‘fixed-b’ asymptotics of [Kiefer and Vogelsang, 2002] and [Kiefer and Vogelsang, 2005] (KV) for heteroskedasticity and autocorrelation consistent inference. We provide simulation evidence that demonstrates that the procedure substantially outperforms conventional inference procedures.     

Property Rights Protection of Biotechnology Innovations

Protection of intellectual property embedded in self-replicating biological innovations, such as genetically modified seed, presents two problems for the innovator: the need for copy protection of intellectual property and price competition between new seed and reproduced seed. We consider three regimes in two periods with asymmetric information: short-term contracts, biotechnological protection, and long-term contracts. We find that piracy imposes more intense competition for seed sales than does durability alone. Technology protection systems yield highest firm profit and long-term contracts outperform short-term contracts. Farmers prefer, in order, long-term, short-term, and biotechnical protection. Depending on monitoring cost, long-term contracts may be socially preferred to short-term contracts, with both preferred to biotechnical protection.     

Random Effects Misspecification Can Have Severe Consequences for Random Effects Inference in Linear Mixed Models

There has been considerable and controversial research over the past two decades into how successfully random effects misspecification in mixed models (i.e. assuming normality for the random effects when the true distribution is non‐normal) can be diagnosed and what its impacts are on estimation and inference. However, much of this research has focused on fixed effects inference in generalised linear mixed models. In this article, motivated by the increasing number of applications of mixed models where interest is on the variance components, we study the effects of random effects misspecification on random effects inference in linear mixed models, for which there is considerably less literature. Our findings are surprising and contrary to general belief: for point estimation, maximum likelihood estimation of the variance components under misspecification is consistent, although in finite samples, both the bias and mean squared error can be substantial. For inference, we show through theory and simulation that under misspecification, standard likelihood ratio tests of truly non‐zero variance components can suffer from severely inflated type I errors, and confidence intervals for the variance components can exhibit considerable under coverage. Furthermore, neither of these problems vanish asymptotically with increasing the number of clusters or cluster size. These results have major implications for random effects inference, especially if the true random effects distribution is heavier tailed than the normal. Fortunately, simple graphical and goodness‐of‐fit measures of the random effects predictions appear to have reasonable power at detecting misspecification. We apply linear mixed models to a survey of more than 4 000 high school students within 100 schools and analyse how mathematics achievement scores vary with student attributes and across different schools. The application demonstrates the sensitivity of mixed model inference to the true but unknown random effects distribution.     

全球化与WTO：利益分析及争端解决

一、引言“全球化”这一说法是最近才开始流行的,而我们这些贸易经济学家对它的研究历史却有几十年甚至上百年了;世界贸易组织(WTO)也是最近才成立的,而国际贸易方面的法律专家对它和它的前身--GATT的研究也已近五十年了。在前面的两种情况中,国际贸易方面的专家都会强调世界经