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Communication is fundamental to team work and it occurs increasingly often in a technology-mediated environment. Understanding how communication evolves in such environments is essential to ensuring that the right technology is provided for whatever task a group needs to accomplish, even if it is not precisely known how the technology is going to be used. With the growing body of research on different tools for supporting computer-mediated groups, we still have much to learn about how communication evolves, where potential breakdowns occur, and how groups tailor technology during the communication process. This paper addresses these important issues by providing an in-depth analysis of two-person dyads that communicated over a web-based set of collaboration tools during a 6-week project. We analyze communication through the lens of communicative action theory, showing how social action unfolds during communication and how groups challenge and resolve validity claims in different task-technology environments. This study contributes by exploring group processes, developing and applying group communication analysis tools, and enhancing theorizing on technology tailoring.  相似文献   
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The use of computer-based simulation models has a long history in areas such as environmental planning and policy-making, and particularly in water management. Policy making in these areas is often characterized by inherent conflict among diverse stakeholders with divergent interests. Although simulation models have been shown to be helpful for such problems, they are typically under the control of a technical analyst or governmental agency and are not available to negotiators in real time. Recent trends in computer technology and user expectations raise the possibility of real-time, user-controlled models for supporting negotiation. But is such accessibility likely to be helpful? This study used a "compressed" longitudinal experiment to investigate the impacts of different scenarios of accessibility of computer-based simulation models. The task was based on a real-life problem in Colorado River water management. Results revealed no significant differences among conditions for either solution quality or satisfaction. These results suggest that the common notion of "more is better" may be inappropriate, and resources for improving computer support of negotiation might best be focused elsewhere.  相似文献   
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Green marketing strategies are employed by many enterprises to enhance their corporate image and business performance. Green marketing is perceived as the commitment of a business or an organisation towards the development of safe, eco‐friendly goods and services by employing recyclable and easily decomposed packaging, better pollution prevention methods, and a more efficient use of energy. Against this background, the study followed a case study approach using South Africa's retail giants, Woolworths and Pick n Pay. Stratified purposive sampling was used to carry out in‐depth interviews and administer questionnaires with senior management of the selected retailers. In addition, document and website analyses were used for triangulation purposes. Path analysis and content analysis were used to establish the correlation. The study established that green marketing strategy has a positive effect on corporate image and on business performance. The paper recommends that if enterprises are to sustain competitive advantage, particularly in the retail sector, it is in their best interest to adopt green marketing strategies.  相似文献   
4.
Subsampling high frequency data   总被引:1,自引:0,他引:1  
The main contribution of this paper is to propose a novel way of conducting inference for an important general class of estimators that includes many estimators of integrated volatility. A subsampling scheme is introduced that consistently estimates the asymptotic variance for an estimator, thereby facilitating inference and the construction of valid confidence intervals. The new method does not rely on the exact form of the asymptotic variance, which is useful when the latter is of complicated form. The method is applied to the volatility estimator of Aït-Sahalia et al. (2011) in the presence of autocorrelated and heteroscedastic market microstructure noise.  相似文献   
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We propose an econometric model that captures the effects of market microstructure on a latent price process. In particular, we allow for correlation between the measurement error and the return process and we allow the measurement error process to have a diurnal heteroskedasticity. We propose a modification of the TSRV estimator of quadratic variation. We show that this estimator is consistent, with a rate of convergence that depends on the size of the measurement error, but is no worse than n−1/6n1/6. We investigate in simulation experiments the finite sample performance of various proposed implementations.  相似文献   
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The general objective of this article is to analyse innovation as a determinant of the internationalisation patterns of Brazilian technology-based SMEs (small and medium enterprises) in different sectors and with different technological features. The theoretical background of this article centres on the typologies of innovation, SMEs’ internationalisation patterns, and innovation as an internationalisation determinant. The main theoretical contributions of this qualitative study are its analysis of innovation of the firm, focusing on the type of innovation, the degree of novelty, and the degree of control over the innovation process as determinants of their internationalisation patterns, and the influence of the external organisational environment on innovation and internationalisation. In terms of managerial implications, we highlight the effect of these factors on the competitiveness of case firms in international markets. Finally, our suggestions for future studies include the need for research replication in other emerging markets, the inclusion of both mature and young technology-based SMEs in the sample, the use of longitudinal data for case studies, and the validation of this qualitative study through a quantitative study that includes a larger sample of technology-based SMEs.

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