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1.
Quality & Quantity - A model of mutual influence is presented where the structure of individual’s beliefs and the social structure both matter. The model thus combines processes of belief...  相似文献   

2.
Diehl  David K. 《Quality and Quantity》2023,57(2):1369-1392
Quality & Quantity - In recent years the study of networks has grown across the social, natural, and computer sciences. As numerous fields and disciplines have taken up formal network...  相似文献   

3.
In this study, we develop and test a model that links one's internal and external social network structures to his or her willingness and ability to adapt in a changing work context. Using a survey data from 371 employees working in 133 different branches of a large financial firm, we find that individual behaviors that explain task performance and individual adaptation to change are affected by a number of supportive social ties (size of the support network) with which one receives support inside and, mostly, outside the workplace. The results also show that individual performance and adaptation to change are affected by the level of workers' organizational citizenship behavior. We also identify a mediating effect exerted by the informational network structure (mostly an internal network) on the relationship between the support network (mostly an external network) and individual task performance.  相似文献   

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Chen  Kuan-Hung 《Quality and Quantity》2018,52(2):1399-1408

Most autistic students suffer from the problems of social interaction and interpersonal communication, and most teachers and peers do not know how to get along with their special and irrational behaviors and limited communication methods. Some autistic students could present interests and motivation on interpersonal interaction and are proactive, but it becomes the one-way and age-unmatched weird performance. Assisting autistic students in adapting to school life, enhancing appropriate interactive behaviors, and reducing improper social interaction are the challenges for teachers. Nonequivalent pretest posttest control group design is utilized in this study for the quasi-experimental research. Total 72 students in two classes of a special education school in Fujian Province are selected as the research subjects. The research results reveal (1) significant effect of multimedia teaching on social interaction, (2) remarkable effects of Social Story on social interaction, and (3) the optimal effect of multimedia teaching on the promotion of social interaction with Social Story. Finally, suggestions, according to the results, are proposed, expecting to help autistic students survive in the environment, appropriately interact with people, and effectively enhance the training of social interaction.

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6.
By investigating differences in social networks among entrepreneurs in 20 cultures, this paper contributes to the debate on whether there is universality in the process of entrepreneurial networking. Representative samples of entrepreneurs were identified in the same manner in 20 countries from 2000 to 2004 (N = 304,560). The sampling methodologies and the questions asked were similar across all countries. Logistic regression was used to test for significant regional interaction effects involving personally knowing an entrepreneur. Results are contrary to the existence of any mono-dimensional form of networking practice but do strongly support the existence of both variform universality (culture moderates the importance of networking) and functional universality (cultural similarities in networking practice exist).  相似文献   

7.
  • In aiming for voluntary behavioral change, social marketing may be particularly attractive for social entrepreneurs, but conversely, they may not have the resources or knowledge for conducting full-blown social marketing campaigns. In response to the growing importance and role of social entrepreneurship in tackling social problems and the lack of research concerning how social marketing may play a role in such organizations, the purpose of this paper is to develop a deeper conceptual understanding of how social marketing may be of use to social entrepreneurial organizations. The research reports on a case analysis of One Drop and its Aqua expo and the utilization of social marketing in pursuit of its goal to achieve water conservation in the Northern Hemisphere. The research shows the adoption of elements of social marketing but not a conscious adoption of social marketing as a strategy.
Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

8.
  • This paper explores the use of online social networks in the charity sector. Twelve major UK charities from a range of sectors and three digital marketing agencies were selected to provide rich interview data on the current adoption of online social networks by UK charities. The empirical findings illustrate the diverse drivers in adopting online social networks including regaining control of a brand, external pressures and gaining new audiences. Levels of usage differed significantly and the resistors consistently cited were the lack of skills and resources. The strategic marketing implications for the development of online social networks are also outlined for the UK charity market. The value provided by this paper stems from exploring the organisational perspective rather than the consumer experience of contributing to social networks, within a context which is often overlooked, the charity sector.
Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

9.
This paper uses social comparison theory to explore the effect that the average size of established businesses at the regional (provincial) level may have on start-up size. It is argued that established entrepreneurs at the regional level become referents of new entrepreneurs, influencing not only the decision to become entrepreneurs but also the characteristics of the new venture, such as its initial size. Specifically, the greater the average size of established businesses at the provincial level, the bigger the start-up size of new ventures. This paper further considers how this effect is moderated by two key individual level variables: knowing an entrepreneur personally (i.e., close social referent), and being the owner and manager of an existing business (i.e., past entrepreneurial and managerial experience). Predictions are tested using data that combine individual- and provincial-level information in Spain over the period 2008–2014. The results show the positive relationship of the average size of established businesses on new venture start-up size, and that this effect decreases when the entrepreneurs have previous entrepreneurial experience.  相似文献   

10.
Rain gauge is the standard instrument for ground-based precipitation measurements and rain gauge networks play an important role in the monitoring of disasters caused by heavy rainfall, such as flooding and landslides. Many authors have contributed to the research of sophisticated methods and techniques for the design of optimal rain gauge networks, including guidelines for the placement of the devices based on the meteorological and physiographic factors of the study area, however, there is not a consensus on the best procedure to locate these equipment. In fact, there is a rapid growing interest and need for the improvement of monitoring networks and the optimization algorithms and solvers allowed a rapid evolution toward more efficient models. This study presents a systematic literature review (SLR) of studies on the optimization of rain gauge networks using the PRISMA protocol, detailing the study areas, methods, datasets and models used. To the best of authors’ knowledge, the latest thorough SLR on this subject was published in 2009 by the time of development of the authors’ research, however, the amount of research on this topic has grown significantly since then and optimization techniques have undergone a compelling evolution. Results indicate a wide variety of applications, objectives, methods, models and algorithms aimed at optimizing rain gauge networks. Conclusions are drawn in the light of the opportunities for future research on this topic.  相似文献   

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This paper analyzes the impact of the Sino-US trade friction incident in 2018 on China's stock market by using the complex network methods. Firstly, we divide the Sino-US trade friction incident in 2018 into four research periods. Based on the GARCH-BEKK model and the Planar Maximum Filter Graph (PMFG) algorithm, the volatility spillover network between China's stock market sectors and the stock price correlation network of China's stock market corresponding to the above four research periods are constructed. Next, from the perspective of sectors in stock market, we use various network centrality indicators to build a systematic importance comprehensive evaluation index of industry sectors in the stock market through the principal component analysis method, to explore the impact of the Sino-US trade friction incident on the risk spillover effects of sectors in China's stock market. From the perspective of the overall stock market, we analyze the impact of Sino-US trade friction incident on the overall stability of the stock market through calculating the network topology indicators and conducting simulation experiments. Finally, the main factors affecting the stability mechanism of China's stock market are studied through the probit model. The results show that: (1) The risk spillover effect of various sectors in China's stock market changes significantly in different periods of Sino-US trade friction, and there are obvious cyclical rotation effects among various sectors (2) When some weighted stocks in the stock market abnormally fluctuate or suffer targeted shocks, the China's stock market's ability to maintain stability is weak, and the Sino-US trade friction will reduce the stability of China's stock market, and the higher the intensity of trade friction incident is, the more obvious the impact of the incident is. (3) The important factors that affect the abnormal fluctuations in China's stock market include four types of indicators: the stock market network structure, the fluctuation of important international stock indexes, the fluctuation of commodity prices in the international market, and the domestic macroeconomic indicators. This study provides a reference for China's financial regulatory authorities to conduct macro-prudential management, control systemic risks, and maintain the stability of financial market.  相似文献   

13.
The purpose of the paper is to explore the way manufacturing firms use internal and external suppliers in the design and management of manufacturing networks. The main area of interest is to explore the similarities and differences between internal and external suppliers, with respect to their roles and the reasons for choosing a certain type of supplier. We base our analysis on data from 104 Swedish manufacturing plants and their corresponding manufacturing networks of internal and external suppliers. The results of the study show that there are significant differences between the criteria that are influential in choosing a certain type of supplier. The choice of an internal supplier is largely based on a single corporate decision, while an external supplier has to perform well on a number of criteria (primarily quality, cost, and delivery dependability). When comparing the selection criteria with competitive priorities and plant performance, we find that the criteria for selecting external suppliers has a better match than those for selecting internal suppliers. The sample contained plants having only external suppliers as well as plants having both internal and external suppliers, but the selection criteria for external suppliers are the same for both groups and not dependent upon the presence or absence of internal suppliers.  相似文献   

14.
The enhanced index tracking (EIT) problem is concerned with selecting a tracking portfolio that achieves an excess return over a given benchmark with a minimum tracking error. This paper explores the EIT problem by providing two new mean–variance EIT models based on uncertainty theory where stock returns are treated as uncertain variables instead of random variables and stock return distributions are estimated by experts instead of from historical data. First, this paper formulates an uncertain enhanced index tracking (UEIT) model and analyzes the characteristic of the UEIT frontier. Then to reduce the tracking portfolio’s risk, this paper adds a risk index (RI) constraint to the UEIT model and proposes a UEIT-RI model. Next, by comparing the UEIT and UEIT-RI models this paper gives the advantages of the two models. Investors can choose the model according to their preferences. Finally, this paper conducts numerical examples to illustrate the application of the two models and the analysis results.  相似文献   

15.
Zhao  Jinlou  Gao  Hongyu  Li  Yongli  Liu  Jiaguo 《Quality and Quantity》2017,51(5):2395-2407
Quality & Quantity - Hot topics, as a common phenomenon on social media platform, play a major role in public opinion. This paper aims to discuss the issues about the duration of hot topics:...  相似文献   

16.
One of the leading debates in social sciences concerns research design. However, in comparative politics, the predominant way conducting research misses out crucial aspects that are central to social theory. This article shows how method and empirical research are highly dependent on the definition of theory. Arguing that theory should not only give an explanation of the social phenomena in question but should also show how this relationship is constructed, this article outlines the consequence of such a perspective, namely that the collection of data should reflect both macro and micro perspectives and the analyses of data should be carried out using mixed methods. In conclusion, such an integrated framework is the most appropriate way to give valuable theoretical feedback, either by examination and revision of already established theories or by a contribution to the construction of new theory in the social sciences. It is important, though, that such a framework is applied in a systematized way.  相似文献   

17.
International Entrepreneurship and Management Journal - The number of sports firms has grown in recent years, along with the emergence in this sector of so-called lifestyle entrepreneurs. However,...  相似文献   

18.

This study investigates how a venture capital’s network affects its exit performance. While most network research focuses on individual characteristics such as centrality and density, this study explores the overall advantage that results from holding a network position (i.e., a network advantage). This network advantage is examined at the syndicate level, which is a group of organizations. Within this context, the study contemplates the syndicate’s network advantage and hones in on the syndicate’s network advantage diversity, because the composition of members’ network advantage within the syndicate as well as the syndicate’s network advantage itself may affect the syndicate’s performance. To do this, first it is hypothesized that both a venture capital syndicate’s network advantage and its network advantage diversity are positively associated with its exit performance. Next, the study predicts that a syndicate’s network advantage diversity negatively moderates the positive relationship between the syndicate’s network advantage and its exit performance. Then a two stage least squares analysis of 1137 venture capital syndicate investments largely confirms the predicted effects. A syndicate’s network advantage is shown to contribute to its exit performance. A syndicate’s network advantage diversity clearly weakens the positive relationship between the syndicate’s network advantage and performance, while its direct effect on performance is not significantly supported. Overall, these findings show that a syndicate’s network advantage and its diversity are critical determinants of its exit performance in the venture capital industry.

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Academic entrepreneurs are the key actors in academic entrepreneurship. However, the individual level of research on academic entrepreneurship remains undeveloped. To better understand the micro foundation of academic entrepreneurship, we investigate the influence of social identification on academic entrepreneurs’ role conflict. Using data from 246 academic entrepreneurs, we explore the effects of scholarly identification, entrepreneurial identification, and social identity continuity on academic entrepreneurs’ role conflict. The results suggest that, entrepreneurial identification and social identify continuity are both negative related to identify conflict, while a scholarly identification is positively related to role conflict. In addition, the interaction of scholarly identification and entrepreneurial identification is negatively associated with role conflict. We also investigate the performance implications of such a role conflict and show that it is negatively related to academic entrepreneurship performance. We discuss the theoretical and practical implications of these findings.

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