运筹学CAI系统的开发研究

本文主要研究“运筹学计算机辅助教学系统”,这一系统将对传统教学方法和教学手段进行改革, 实现交互式教学, 大大提高教学质量和教学效果     

ISO22000在高校食堂的实施

高校食堂为全校所有的师生的饮食提供了相应的保障,所以其责任相对较为重大。而且,由于高校食堂管理的最大特点就是品种多样化,其中牵涉到的食品工艺以及各项工作相对较为复杂的特点,所以在食品管理工作中存在着诸多的安全问题。具体而言,集中在一个时间段进行用餐且用餐人数较多,食堂的压力较大。本文通过解读IS022000分析该体系在高校食堂实施的重要性,对当前高校食品安全管理存在的问题,提出了相应的解决措施。     

Super returns to Super Bowl ads?

This paper uses a natural experiment—the Super Bowl—to study the causal effect of advertising on demand for movies. Identification of the causal effect rests on two points: 1) Super Bowl ads are purchased before advertisers know which teams will play; 2) home cities of the teams that are playing will have proportionally more viewers than viewers in other cities. We find that the movies in our sample experience on average incremental opening weekend ticket sales of about $8.4 million from a $3 million Super Bowl advertisement.     

Internationalisation at home: The internationalisation of location-bound service SMEs

This study explores how location-bound service small- and medium-sized enterprises (SMEs)—such as tourism companies—internationalise. We suggest that key dimensions in the internationalisation of these firms are the available resource base, the company network and its embeddedness and entrepreneurial capabilities, particularly entrepreneur’s language skills, global mindset and cultural awareness. We propose an internationalisation framework model supported by three illustrative case examples from Finland. The framework differentiates between passive developers, emerging developers and international entrepreneurs. The study makes several contributions. First, it provides an advanced view on the internationalisation of service firms and challenges in previously applied theories in a novel context. Second, it highlights the significance of location-bound resources in the process. Third, the findings indicate that the interplay between the resource base, company network and entrepreneurial capabilities is decisive for internationalisation. We also suggest managerial implications for both the industry and policymakers, supporting the internationalisation of location-bound service firms.Diese Studie untersucht, wie ortsgebundene Dienstleister, wie zum Beispiel KMUs in der Touristikbranche, international expandieren. Wir schlagen vor, daβ die verfügbaren Ressourcen, das unternehmerische Netzwerk, die Sprachkenntnisse des Unternehmers, die unternehmerischen Fähigkeiten, eine globale Denkweise und kulturelles Bewusstsein zu den wichtigsten Dimensionen der Internationalisierung gehören. Durch drei anschauliche Fallbeispiele aus Finnland entwickeln wir ein Internationalisierungsmodell, welches wir vorschlagen. Das Rahmenmodell, welches zwischen passiven und aufstrebenden Entwicklern, sowie internationalen Unternehmern unterscheidet, macht eine Reihe von Kontributionen. Erstens, es erweitert unser Verstehen der Internationalisierung von Dienstleistern und fordert etablierte Theorien durch einen neuen Kontext heraus. Zweitens, es hebt die Bedeutung der ortsgebundenen Ressourcen hervor, die zum Internationalisierungsprozess beitragen. Auβerdem zeigen unsere Ergebnisse, daβ das Zusammenspiel von Ressource-Basis, Firmennetzwerken und unternehmerischen Fähigkeiten von entscheidender Bedeutung für die Internationalisierung sind, Ergebnisse, die uns veranlassen, praktische Implikationen für Unternehmen, wie für Gesetzgeber vorzuschlagen, damit die Internationalisierung ortsgebundener KMUs im Dienstleistungssektor unterstützt wird.     

Institutional theory and global entrepreneurship: exploring differences between factor- versus innovation-driven countries

Using the lenses of institutional theory, this study examines several Entrepreneurial Factor Conditions (National Experts Survey database) while focusing on potential differences of several institutional dimensions between factor- (or production) and innovation-driven countries. This study therefore examines first the extent to which several Scott’s institutional variables (normative, regulative, and cultural-cognitive) differ according to the economic structure of countries participating in NES-GEM. Results indicate that the relevance of both regulative and cultural-cognitive dimensions differ between the group of countries driven by factor (or production) versus innovation, with a single exception, the normative dimension. Second, the study fine tunes the analysis and examines the extent to which the relevance of the aforementioned dimensions differs in two distinct institutional contexts (Portugal and Angola). Results show that the relevance of all institutional variables is different except one, the basic education and training. A possible explanation for these results may be associated to the lack of and fragility of several institutions and the absence of norms and regulations needed for a well-functioning economy, particularly in what concerns the factor (or production)-driven countries. In terms of originality, the study addresses an area of the GEM model that is under-researched.     

From global start-ups to the borderless firm: Why and how to build a worldwide value system

Although the original concept of international new ventures included the geographic configuration of value activities, the subsequent development of the literature has gradually abandoned the concern about the geographic configuration of both input sourcing and output marketing to concentrate almost exclusively on the latter. Therefore, this paper argues that there is a need to re-focus the research so as to figure out how and why some companies are borderless. Borderless firms are defined as the result of the combination, early on, of geographically dispersed resources and capabilities, defying the home-base logic. A borderless firm presents the following characteristics (or a combination of them) from inception (or shortly thereafter): (i) value-added activities dispersed across different countries and regions; (ii) entrepreneurs not bounded by a home base; (iii) multinational founders and/or management teams; and (iv) a multinational workforce. To enquiry into this issue, the study uses five case studies of borderless firms. The results advance the understanding of the motives and processes behind the development, early on, of a borderless configuration of value activities.     

Can returnee managers promote CSR performance? Evidence from China

With growing economic globalization, returnee managers who have obtained education or work experience overseas play a much more crucial role in corporations, especially in emerging economies. Using hand-collected managerial background data from a sample of firms listed on the Shanghai and Shenzhen Stock Exchanges from 2010 to 2014, this paper investigates the impact of returnee managers on corporate social responsibility (CSR) performance. We find that returnee managers can promote CSR performance. Further analyses show that the impact of returnee managers on CSR is more pronounced when managers have a foreign study background compared to managers with foreign work experience. The impact only holds when managers obtained their experience in developed economies. When enterprises face greater information asymmetry, returnee managers are more willing to use CSR as a tool to convey a positive image to stakeholders. CSR can help managers reduce information asymmetry and improve firm value. The results are robust through a series of robustness checks including a propensity score matching (PSM) procedure and a Heckman two-state sample selection model. This paper contributes to growing studies on the economic consequences of returnee managers and advances our understanding of the determinants of CSR at the individual level. The results also have implications for government and enterprises attracting talents with overseas experience.     

The effects of perceived value on loyalty: the moderating effect of market orientation adoption

This paper aims to identify the moderating effect of service firms’ adoption of market orientation on key variables of consumer behavior, namely perceived value and loyalty. The study took a business-to-customer perspective. First, the adoption of market orientation was measured, from the firm’s point of view. Second, customer perceptions were analyzed, using the two variables perceived value and loyalty. The sample comprised 100 service firms and 572 of their customers. The present work provides original insights, identifying that the effect of perceived value on loyalty depends on other variables external to the consumer, such as the market orientation approach.     

The role of other customers during self-service technology failure

Service recovery through inter-customer helping is especially meaningful in the self-service technology (SST) failure context because SSTs are associated with a high risk of failure due to the lack of face-to-face contacts with employees. In understanding the phenomenon of inter-customer helping, two fundamental questions are investigated in the current research: (1) does social influence play a role in customers’ helping decisions? and (2) what are the motives for helping? Through two experimental studies, we provide evidence that two different forms of social influence play a role in helping others during SST failures, and customers have self-centered (vs. other-centered) motives. Results from Study 1 showed that individuals in the private environment indicated more willingness to help than individuals in the public environment did due to heightened perceived responsibility. Study 2 revealed that tie strength influenced willingness to help via a dual pathway: perceived responsibility and social approach motives. Finally, we discuss and highlight the positive influence that self-centered motives can exert in the SST failure scene.     

Online Survey Data Quality and Its Implication for Willingness‐to‐Pay: A Cross‐Country Comparison

Using online surveys to elicit consumer preference is gaining popularity because of several advantages offered by this method. Past research mainly focuses on the comparison between online surveys and other survey modes. Few have explored methods of using online survey tools to improve data quality for consumer willingness‐to‐pay (WTP) estimates. This article determines the impact of using a validation question (VQ) approach that asked survey respondents to select a particular answer on improving online survey data quality across six countries. Results show that survey data quality is a common problem in online surveys across countries and the severity of this problem differs significantly. Using VQs might detect the respondents who are less careful in answering survey questions, thus providing less reliable answers. The econometric models for respondents who correctly answer VQs (pass VQs) perform significantly better than the models for respondents who incorrectly answer VQs (fail VQs). The WTP estimates for respondents who pass and fail VQs differ significantly; and in general the WTP estimates for respondents passing VQs have smaller variances than those for all respondents and for respondents failing VQs.