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141.
《Socio》2019
Ratio type financial indicators are the most popular explanatory variables in bankruptcy prediction models. These measures often exhibit heavily skewed distribution because of the presence of outliers. In the absence of clear definition of outliers, ad hoc approaches can be found in the literature for identifying and handling extreme values. However, it is not clear how these different approaches can affect the predictive power of models. There seems to be consensus in the literature on the necessity of handling outliers, at the same time, it is not clear how to define extreme values to be handled in order to maximize the predictive power of models. There are two possible ways to reduce the bias originating from outliers: omission and winsorization. Since the first approach has been examined previously in the literature, we turn our attention to the latter. We applied the most popular classification methodologies in this field: discriminant analysis, logistic regression, decision trees (CHAID and CART) and neural networks (multilayer perceptron). We assessed the predictive power of models in the framework of tenfold stratified crossvalidation and area under the ROC curve. We analyzed the effect of winsorization at 1, 3 and 5% and at 2 and 3 standard deviations, furthermore we discretized the range of each variable by the CHAID method and used the ordinal measures so obtained instead of the original financial ratios. We found that this latter data preprocessing approach is the most effective in the case of our dataset. In order to check the robustness of our results, we carried out the same empirical research on the publicly available Polish bankruptcy dataset from the UCI Machine Learning Repository. We obtained very similar results on both datasets, which indicates that the CHAID-based categorization of financial ratios is an effective way of handling outliers with respect to the predictive performance of bankruptcy prediction models. 相似文献
142.
Anand Nair Tingting Yan Young K. Ro Adegoke Oke Todd H. Chiles Su‐Yol Lee 《Journal of Supply Chain Management》2016,52(2):66-86
Through a qualitative study of two firms' supply networks, we develop a theory of the process by which environmental innovations emerge and proliferate in supply networks. To overcome limitations of current supply network innovation theories, which focus on the diffusion of existing innovations, we employ a complex adaptive systems perspective, which addresses how such innovations come into being in the first place and how they spread in a network over time. Our findings suggest a process model, in which temporally connected processes cross from the organizational to the network level, creating and spreading environmental innovations in supply networks. This model and its corresponding theoretical propositions were generated through an abductive research methodology. Our key insight is that development of environmental innovations in supply networks is an emergent phenomenon. Once in the network realm, the process ceases to be under the control of the dominant buying firm. Instead, self‐organization and decentralized coordination prevail. 相似文献
143.
《Business Horizons》2014,57(6):709-717
Companies’ escalating investment in social media—in particular, in Facebook—has become reality. However, most firms still do not see social networks as a vehicle for cultivating and winning customer loyalty, but rather as a resource for creating brand awareness. In this article, we offer a different view. By examining fans and non-fans of the Zara brand on Facebook, we discovered that Facebook enhances the relations that increase loyalty via trust, customer satisfaction, perceived value, and commitment. Our results revealed that these relations are stronger for fans of the brand than for non-fans, and suggest that customer satisfaction is the strongest determinant of loyalty. This indicates a new opportunity for marketing managers to achieve customer loyalty: Facebook. 相似文献
144.
《Business History》2012,54(6):695-713
At the beginning of the twentieth century the Cape-based Afrikaner elite used their social networks to establish an insurance company to address their business aspirations as well as wider economic empowerment needs of poor Afrikaners. This contribution explores the operating dynamics of social capital of an elite portion of society to benefit the wider Afrikaner community, thereby establishing new networks among Afrikaners. By the second half of the twentieth century the South African Life Assurance Company (Sanlam) developed from a local Cape-based enterprise to a strong diversified corporation extending social capital from the limited elite group to Afrikaners in the wider context of South Africa. The networks among Afrikaners were the key to the successful development of Sanlam and associated companies. 相似文献
145.
本文总结梳理了“两网融合”复合型贸易经济专业人才培养的现状和新的要求,分析了“两网融合”复合型贸易经济专业人才培养的发展方向。从建立教学和科研复合型教学团队模式、信息化平台和实验室“多媒介”培养模式、“两网融合”平台全流程内部审计型人才培养模式、“课程思政+专业技能”结合教学模式等四个方面总结模式创新的基本途径。 相似文献
146.
This research examined how operational outcomes, relational outcomes and business performance are affected by a collaboration project between buyers and suppliers in a supply chain. It is hypothesized that interdependence of knowledge and process, supply chain partner insight, and the level of collaboration between the firms affect the outcomes of a collaboration project. Survey data from buyers and suppliers from a wide range of industries and organizations were used in this analysis. Among these participants, higher levels of collaboration led to improvements in operational and relational outcomes, which together led to improvements in asset utilization, competitive position, organizational performance, and profitability. 相似文献
147.
Production processes are becoming increasingly more complicated as firms develop corporate strategies that are designed to increase profitability or capture market share. The focus of this article is on manufacturing companies (3M and Boeing) and on understanding the social organisation of production and the ways in which firms manipulate spatial divisions of expertise (service inputs) as well as labour (manufacturing inputs). This distinction recognises that there are important differences between production and non-production tasks. The 3M case examines the firm's global labour market by exploring the geographies of its transnational or foreign service employees. The Boeing case examines the design and manufacture of the 787 and the development by Boeing of a new complex spatial division of expertise. 相似文献
148.
虚拟企业伙伴选择方法的研究 总被引:2,自引:0,他引:2
选择正确的合作伙伴是虚拟企业组建的关键步骤之一,也是虚拟企业成功运作的首要前提。针对某一具体案例,从目前虚拟企业伙伴选择的几种典型方法入手,运用系统研究方法,对各方法的具体思路作一总结,并提出了各方法的适用范围、优势与弊端,同时,找出了它们之间的差异所在。 相似文献
149.
The entrepreneurial ecosystems literature has increasingly explored network relationships between different stakeholders, as well as the role of context. This article addresses the challenge of including a sport context in the entrepreneurial ecosystem literature thereby contributing to the sport entrepreneurship literature by bringing insights from entrepreneurship ecosystem research. In‐depth interviews of football stakeholders in the sport entrepreneurship ecosystem are conducted in terms of understanding the emergence of digital sport start‐ups. The issues raised help explore the changing nature of digital entrepreneurial ecosystems to take into account new sport technological advances. Mixed embeddedness theory is used as the conceptual foundation to understand sport digital entrepreneurial ecosystems. Key management practices are identified in terms of sport start‐ups participating in entrepreneurial ecosystems. The article concludes by making suggestions for future research. 相似文献
150.
André Sobczak 《Journal of Business Ethics》2003,44(2-3):225-234
In the past ten years, many European companies organised into subcontracting networks have decided to adopt codes of conduct to regulate labour relations and to ensure the respect of fundamental social rights. This paper first determines the context and the issues to be addressed by codes of conduct within networks of companies, and second analyses the terms under which they can be implemented. The paper argues that codes of conduct can complement the standards developed by States, the European Union or the social partners, but that steps should be taken in order to avoid that these texts replace the existing labour law. 相似文献