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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).
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Mehmet Murat Kristal Mark Pagell Chenlung Yang Chwen Sheu 《Operations Management Research》2011,4(1-2):61-73
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. 相似文献
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Are lodging customers ready to go green? An examination of attitudes,demographics, and eco-friendly intentions 总被引:1,自引:0,他引:1
Heesup Han Li-Tzang Jane Hsu Jin-Soo Lee Chwen Sheu 《International Journal of Hospitality Management》2011
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. 相似文献
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Application of the Theory of Planned Behavior to green hotel choice: Testing the effect of environmental friendly activities 总被引:2,自引:0,他引:2
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. 相似文献
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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 相似文献
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Chung-Kuao Chou M.D. Gin-Chung Liu Chee-Wah Yang Li-Tzong Chen Reu-Shen Sheu Twei-Shiun Jaw 《Empirical Economics》1993,18(3):205-210
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. 相似文献
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Chien Min Chen Hong Tau Lee Sheu Hua Chen Tsun Hung Huang 《International Journal of Tourism Research》2011,13(5):416-432
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. 相似文献
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This research constructs a performance evaluation mechanism in regard to the interdependence of evaluators and criteria. The
interest in performance evaluation has spawned a number of studies that investigated criteria or evaluators for organizations’
performance evaluation. However, very little attention has been paid to address the relationship between the evaluators and
criteria. It is quite clear that there are different standpoints exist in different evaluators, consequently particular evaluators
usually emphasize certain groups of criteria more than others. On the other hand, considering different criteria the strength
of relation of evaluator changes accordingly. We address the existence of interaction between evaluator and criteria, because
the two factors play major roles in the performance evaluation. This consideration gives top managers the chance to explore
and realize the relationship between evaluators and criteria. It also reveals the evaluators’ synthetic standpoints about
criteria, which are meaningful for managerial purposes. 相似文献