Quantitative Methods for Evaluating the Unilateral Effects of Mergers

We describe the quantitative modeling techniques that are used in horizontal merger review for the evaluation of unilateral effects, and discuss how the 2010 Horizontal Merger Guidelines helped legitimize these methods and motivate scholarly research. We cover markets that feature differentiated products pricing, auctions and negotiations, and homogeneous products, in turn. We also develop connections between quantitative modeling and market concentration screens that are based on the Herfindahl-Hirschman Index (HHI).

     

Are supply chain management theories culturally constrained? An empirical assessment

Culture plays an increasingly important role in supply chain management as many manufacturing firms have linkages to suppliers and customers from various countries. In this paper we propose treating culture as an explanatory variable to test the assumption that existing theories are universally applicable. The primary research question was: Do purchasing theories built on samples from mainly North American companies with Anglo-Saxon cultures apply in other cultural contexts? We developed and tested a model where top management??s view of the purchasing function affects purchasing practices and manufacturing performance. The statistical results provide evidence that the engagement and efficacy of purchasing practices is highly dependent on culture. This finding has significant implications from the perspective of decision making in international supply chain management. Specifically, top managers across multiple cultures could decide to structure and evaluate the purchasing function similarly, but these decisions could lead to different practices and different outcomes depending on the culture.     

Are lodging customers ready to go green? An examination of attitudes,demographics, and eco-friendly intentions

This study attempted to answer the following research questions: (1) Do eco-friendly attitudes affect hotel customers’ environmentally friendly intentions to visit a green hotel, to spread word-of-mouth about a green hotel, and to pay more for a green hotel?; (2) If so, which facet of attitudes has the greatest impact?; (3) How do their expressed intentions differ across gender, age, education, and household income?; (4) How do such expressed intentions differ based on the existence of previous experience staying at a green hotel? A total of 422 cases were used to answer the research questions. Findings indicate that customers’ green attitudes are, in general, significantly associated with their expressed intentions to visit a green hotel, to spread word-of-mouth about a green hotel, and to pay more for it. Gender differences in such intentions were found, and the intentions were affected by their previous experiences with a green hotel. However, the eco-friendly intentions did not significantly differ across age, education, and household income.     

Inter-organizational relationships and strategy quality in green supply chains — Moderated by opportunistic behavior and dysfunctional conflict

This paper presents a new research model to examine the factors influencing the quality of strategies developed and implementation in inter-organizational relationships in a green supply chain. In this study, we examine how attitude toward relationship orientation affects inter-organizational strategy quality, and how this association is affected by the opportunistic behavior and dysfunctional conflict. Relationship orientation, measured by relational benefits, relational proclivity, and connectedness, refers to the desire to develop and maintain relationships with green supply chain partners. Data are collected from 451 manufacturing firms that are among the top 1000 Taiwanese manufacturing firms of 2010 listed by Business Weekly. Relationship orientation, or the desire to develop and maintain relationships with collaborative partners, was found to be positively associated with the strategy quality. Our results show that opportunistic behavior and dysfunctional conflict decrease the willingness and damage efforts to establish relationships to enhance the strategy quality for the green supply chain.     

The incremental value of a futures hedge using realized volatility

A number of prior studies have developed a variety of multivariate volatility models to describe the joint distribution of spot and futures, and have applied the results to form the optimal futures hedge. In this study, the authors propose a new class of multivariate volatility models encompassing realized volatility (RV) estimates to estimate the risk‐minimizing hedge ratio, and compare the hedging performance of the proposed models with those generated by return‐based models. In an out‐of‐sample context with a daily rebalancing approach, based on an extensive set of statistical and economic performance measures, the empirical results show that improvement can be substantial when switching from daily to intraday. This essentially comes from the advantage that the intraday‐based RV potentially can provide more accurate daily covariance matrix estimates than RV utilizing daily prices. Finally, this study also analyzes the effect of hedge horizon on hedge ratio and hedging effectiveness for both the in‐sample and the out‐of‐sample data. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:874–896, 2010     

Application of the Theory of Planned Behavior to green hotel choice: Testing the effect of environmental friendly activities

The present study proposed and tested Ajzen's Theory of Planned Behavior (TPB) model to explain the formation of hotel customers' intentions to visit a green hotel. The findings showed the TPB model has a good fit to the data and better predictive power for intention than the Theory of a Reasoned Action model. Based on theoretical support and suggested modification indices, a refined TPB model was developed. Consistent with the theory, the results of a structural equation analysis revealed that attitude, subjective norm, and perceived behavioral control positively affected intention to stay at a green hotel. Further investigation indicated the paths between these predictors and intention did not statistically differ between customers who actively practice ecofriendly activities and those who are not often engaged in environmentally conscious behaviors in their everyday lives. Implications and suggestions for future research are discussed.     

Abdominal MR imaging following antegrade air introduction into the intestinal loops

Air was used to distend the gastrointestinal tract and act as a contrast medium to effectively delineate the other abdominal organs/masses and to outline intraluminal or mural lesions. We used a nasogastric tube to introduce air into the stomach. Metoclopramide was administered to propel air throughout the gastrointestinal tract. Bowel peristalsis was then controlled by scopolamine butylbromide. Most of the alimentary tract could be distended by air. The normal bowel walls were barely visible between intraluminal signal-void air and extraluminal high-signal fat. Intraluminal tumor, wall thickening, and adjacent structures could be clearly delineated.     

Tourist behavioural intentions in relation to service quality and customer satisfaction in Kinmen National Park,Taiwan

This study assesses tourist satisfaction and its links with service quality using a hierarchical model that combines four primary determinants and eight corresponding sub‐dimensions. A sample of 616 tourists departing from Kinmen Airport was surveyed with a structured questionnaire after they had just visited Kinmen National Park. A series of analyses was performed to explore tourist satisfaction with the four main service quality attributes as well as their willingness of repeat visits and recommendation. As a result, it was consistently found that service quality has positive significant relationship with tourist satisfaction. It is thus suggested that national park managers have to satisfy tourists with a high level of service quality, based on the concept that service quality may have a significant influence on long‐term behavioural intentions through high levels of customer satisfaction. Copyright © 2010 John Wiley & Sons, Ltd.