On multivariate higher order von Mises expansions

In this paper we review the von Mises calculations of higher order for statistical functionals of one variable. For the functionals of several variables, the higher order Gateaux differentials are defined leading to the corresponding multivariate higher order von Mises expansions. These expansions are used to analyze the bias of the corresponding statistical functionals. The second and third order derivatives are computed for M-estimates. Applications of these expansions to study the bias of M-estimates of location and to simultaneous M-estimates of location and scale are also given. Received: July 2000     

TRANSATLANTIC CAPITAL MARKET PRICE DISCOVERY DURING A FINANCIAL CRISIS

Previous results show relatively small amounts of time variation in the Hasbrouck (1995) information share across international markets. Using data from a security that was cross‐listed on the New York and London Stock Exchanges in the 1860s, we find that the information share changes dramatically during a financial crisis that began in the foreign market.     

基于层次分析法的广西再生铜产业SWOT分析

文章运用SWOT分析方法从定性角度分析广西再生铜产业在发展过程中所面临的机遇与威胁以及优势和劣势,然后运用层次分析法定量分析影响广西再生铜产业的各种内外部因素,得出:(1)在当前外部环境下广西再生铜产业发展中面临的最大机会是铜的市场需求很大,而最大的威胁是再生铜原料供应日趋紧张;(2)在当前内部环境下广西再生铜产业发展中最大的优势是地理区位优势,而最大的劣势在于技术装备水平落后。最后采用SWOT四边形的方法选择出适合广西再生铜产业发展的SO战略。     

“I will never go to Hong Kong again!” How the secondary crisis communication of “Occupy Central” on Weibo shifted to a tourism boycott

Social media, an open space for the public's opinion and expression, has become an increasingly essential issue in crisis events, leading to secondary crisis communication. Realizing the potential risk of that, this study took the “Occupy Central” spreading on Weibo as a case, and applied topic clustering and sentiment analysis to examine the sequential characteristics of secondary crisis communication on social media in topics and emotions. Results show that the topics Weibo users discussed shifted from a political event to tourism boycott, with emotions turning increasingly negative. The turning point of such a transfer was aroused group conflicts and negative emotions elicited between people from mainland China and Hong Kong. The results indicate the necessity of emphasizing secondary crisis communication during a crisis due to the dynamic and sequential change of topics and public's emotions, which may result in new crises impacting the tourism destination where the initial crisis occurs.     

Longitudinal analysis versus cross-sectional analysis in assessing the factors influencing shoppers’ impulse purchase behavior – Do the store ambience and salesperson interactions really matter?

Numerous studies in the marketing literature focused on consumer behavior in general, but relatively few studies have examined Impulse purchase behavior (IPB). Although few studies examined IPB, the vast majority of the studies were conducted using the cross-sectional design. These studies suffer from certain limitations like random measurement error, common method bias, causality & validity-related issues that are inherently associated with the cross-sectional design. Despite these limitations, very few studies have examined the IPB using the longitudinal design. Multilevel structural equation modeling (ML-SEM) is conducted in the study to analyze the longitudinal data for examining the changes in the causal effects of the factors influencing the shoppers' IPB over a period of time. Additionally, structural equation modeling (SEM) is conducted to examine changes in the causal effects of the factors influencing IPB at each time point of data collection. Drawing upon the stern's model and stimulus-organism-response model, the study examines the causal effects of the factors influencing the IPB. The results of ML-SEM indicate significant fluctuations in the factors influencing IPB over time. Similarly, the results of SEM indicates that few factors (like store ambience and salesperson interactions) have shown a significant influence on IPB in the initial time points (i.e., during the initial store visits of shoppers), but became insignificant over a period of time in their subsequent store visits. The findings suggest that the store crowd, secondary customers influence, and in-store promotions show a significant influence on the IPB, compared to the store ambience and salesperson interactions.     

广东研学旅游产品满意度研究 ——世纪明德案例

随着研学旅游市场的快速发展,研学旅游产品数量不断增加.论文以参加研学旅游活动的中小学生为研究对象,以世纪明德为案例,探讨广东研学旅游产品的满意度情况.通过参与企业实践、文本分析和问卷调查等方法,发现目前广东研学旅游产品的总体满意度比较高,但仍存在研学课程配套服务不完善、产品线路设计不够合理、旅游服务质量较低等问题,提出...     

Assessing satisfaction with core and secondary attributes

This research assesses visitor satisfaction with the core and secondary attributes of a tourist destination, using two conventional methods, stated and derived importance. The article shows the importance of core attributes are recoverable equally well, regardless of the method. Importance of secondary attributes, however, vary depending on the estimation method. This difference is systematic. Researchers should use derived methods for assessing satisfaction with secondary attributes. The data are from surveys from visitors to Latin America.