Articles

Leading Collaboration in Online Communities

S. FARAJ, S. KUDARAVALLI, M. WASKO

MIS Quarterly

juin 2015, vol. 39, n°2, pp.393-412

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

http://aisel.aisnet.org/misq/vol39/iss2/8/


Despite the growing importance of online communities in creating knowledge and facilitating collaboration, there has been limited research examining the role of leaders in such settings. In this paper, we propose a framework that integrates behavioral and structural approaches to explore the antecedents of leadership in online communities focused on knowledge work. Specifically, we propose that sociability and knowledge contribution behaviors as well as structural social capital lead to being identified as a leader by members of the online community. We test this framework using social network, survey, and message-level content analysis data collected from three different online communities focused on technical topics. The results from our zero inflated negative binomial models, with 6,709 messages from 976 individuals, provide strong support for the framework that is developed in this study. Our study contributes to both theory and practice by identifying the behavioral and structural antecedents of leadership in online communities

Research on information systems failures and successes: Status update and future directions

Y. K. DWIVEDI, D. WASTELL, S. LAUMER, H. Z. HENRIKSEN, M. D. MYERS, D. BUNKER, A. ELBANNA, M. RAVISHANKAR, S. C. SRIVASTAVA

Information Systems Frontiers

février 2015, vol. 17, n°1, pp.143-157

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : IS success, IS failure, IS implementation, Work systems, Technochange, Change management


Information systems success and failure are among the most prominent streams in IS research. Explanations of why some IS fulfill their expectations, whereas others fail, arecomplex and multi-factorial. Despite the efforts to understand the underlying factors, the IS failure rate remains stubbornly high. A Panel session was held at the IFIP Working Group 8.6 conference in Bangalore in 2013 which forms the subject of this Special Issue. Its aim was to reflect on the need for new perspectives and research directions, to provide insights and further guidance for managers on factors enabling IS successand avoiding IS failure. Several key issues emerged, such as the need to study problems from multiple perspectives, to move beyond narrow considerations of the IT artifact, and to venture into underexplored organizational contexts, such as the public sector

SAfeDJ: A Crowd-Cloud Codesign Approach to Situation-Aware Music Delivery for Drivers

X. HU, J. DENG, J. ZHAO, R. WANG, X. LI, V. LEUNG, Y. KWOK

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)

octobre 2015, vol. 12, n°1

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Smartphones, Context, Crowdsensing, Driving, Cloud, Music mood


Driving is an integral part of our everyday lives, but it is also a time when people are uniquely vulnerable. Previous research has demonstrated that not only does listening to suitable music while driving not impair driving performance, but it could lead to an improved mood and a more relaxed body state, which could improve driving performance and promote safe driving significantly. In this article, we propose SAfeDJ, a smartphone-based situation-aware music recommendation system, which is designed to turn driving into a safe and enjoyable experience. SAfeDJ aims at helping drivers to diminish fatigue and negative emotion. Its design is based on novel interactive methods, which enable in-car smartphones to orchestrate multiple sources of sensing data and the drivers' social context, in collaboration with cloud computing to form a seamless crowdsensing solution. This solution enables different smartphones to collaboratively recommend preferable music to drivers according to each driver's specific situations in an automated and intelligent manner. Practical experiments of SAfeDJ have proved its effectiveness in music-mood analysis, and mood-fatigue detections of drivers with reasonable computation and communication overheads on smartphones. Also, our user studies have demonstrated that SAfeDJ helps to decrease fatigue degree and negative mood degree of drivers by 49.09% and 36.35%, respectively, compared to traditional smartphone-based music player under similar driving situations.

Technostress creators and job outcomes: theorising the moderating influence of personality traits

S. C. SRIVASTAVA, S. CHANDRA, A. SHIRISH

Information Systems Journal

july 2015, vol. 25, n°4, pp.355-401

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Technostress creators, Personality, Transactional model of stress and coping, Eustress, Job burnout, Job engagement


Although prior research has examined the influence of technostress creators on job outcomes, insights into the influence of personality traits on the perceptions of technostress creators and their consequent impacts on job outcomes are rather limited. Such insights would enable a deeper understanding about the effects of individual differences on salient job-related outcomes. In this research, by leveraging the distinctions in personality traits offered by the big five personality traits in the five-factor model and grounding the research in the transactional model of stress and coping, we theorise the moderating influence of personality traits on the relationships between technostress creators and job outcomes, namely job burnout and job engagement. Specifically, the study theorises the mechanisms through which each of the specific personality traits openness-to-experience, neuroticism, agreeableness, conscientiousness and extraversion interacts with technostress creators to differently influence job burnout and job engagement. We test the proposed model in a field study based on a survey of senior organisational managers who regularly use information and communication technologies for executing professional tasks. Although technostress creators are generally associated with negative job outcomes, our results also show that for individuals with certain personality traits, technostress creators may result in positive job outcomes. The study thus contributes to the technostress literature, specifically by incorporating the salient role of individual differences. The study also provides insights for managers who should pay special attention to allocating specific job roles to employees with particular personality traits in order to optimise job-related outcomes

The information technology workforce: A review and assessment of voluntary turnover research

J. LO

Information Systems Frontiers

2015, vol. 17, n°2, pp.387-411

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)


Despite the numerous studies on the topic of IT employee turnover and recommendations to organizations on how to retain their employees, the general turnover trend of IT professionals remains high. The need for further research on IT turnover has been called for by many, but much of the literature continues to conduct similar studies using the same constructs, and these studies find similar results. Now is the time to turn our research attention to directions that have been unexplored or less explored. Newer research directions for the IT turnover literature will provide insights for refining and easing the impact of turnover on organizations. As we embark on new research frontiers in the IT turnover phenomenon, a comprehensive review and assessment of the state of the literature may facilitate future research in building off of existing knowledge. This paper reviews and assesses the existing literature on the voluntary turnover of IT employees, identifies the areas where research has matured, and raises directions for future research that are less chartered

Time series properties of the renewable energy diffusion process: Implications for energy policy design and assessment

S. BASHER, A. MASINI, S. AFLAKI

Renewable & Sustainable Energy Reviews

décembre 2015, vol. 52, pp.1680-1692

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Unit root, Cross-sectional dependence, Renewable energy diffusions, Renewable energy policies

http://dx.doi.org/10.2139/ssrn.2498504


Confronted by increasingly tight budgets and a broad range of alternative options, policy makers need empirical methods to evaluate the effectiveness of policies aimed at supporting the diffusion of renewable energy sources (RES). Rigorous empirical studies of renewable energy policy effectiveness have typically relied on panel data models to identify the most effective mechanisms. A common characteristic of some of these studies, which has important econometric implications, is that they assume that the contribution of RES to total electricity generation will be stationary around a mean. This paper reviews such assumptions and rigorously tests the time series properties of the contribution of RES in the energy mix for the presence of a unit root. To that end, we use both individual and panel unit root tests to determine whether the series exhibit non-stationary behavior at the country level as well as for the panel as a whole. The analysis, applied to a panel of 19 OECD countries over the period 1990-2012, provides strong evidence that the time series of the renewable share of electricity output are not stationary in 17 of the 19 countries examined. This finding has important implications for energy policy assessment and energy policy making, which are discussed in the paper

Understanding the Dynamics of Service-Oriented Architecture Implementation

X. LI, S. MADNICK

Journal of Management Information Systems

2015, vol. 32, n°2, pp.104-133

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Normative commitment, Organizational traps, Service-oriented architecture (SOA), System dynamics, Tipping point

http://ssrn.com/abstract=2686534


Despite the potential benefits, many organizations have failed in service-oriented architecture (SOA) implementation projects. Prior research often used a variance perspective and neglected to explore the complex interactions and timing dependencies between the critical success factors. This study adopts a process perspective to capture the dynamics while providing a new explanation for the mixed outcomes of SOA implementation. We develop a system dynamics model and use simulation analysis to demonstrate the phenomenon of “tipping point.” That is, under certain conditions, even a small reduction in the duration of normative commitment can dramatically reverse, from success to failure, the outcome of an SOA implementation. The simulation results also suggest that (1) the duration of normative commitment can play a more critical role than the strength, and (2) the minimal duration of normative commitment for a successful SOA implementation is associated positively with the information delay of organizational learning of SOA knowledge. Finally, we discuss the theoretical causes and organizational traps associated with SOA implementation to help IT managers make better decisions about their implementation projects

Efficient purchaser incentive when dealing with suppliers implementing continuous improvement plans

L. KERBACHE, C. VAN DELFT

International Transactions in Operational Research

juillet 2014, vol. 21, n°4, pp.673-701

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Continuous improvement, Dynamic programming, Purchaser incentives, Stochastic decision process


This paper presents incentive schemes in the framework of a collaborative purchasing cost reduction process with a supplier implementing a continuous improvement plan. Using a stochastic decision process formulation, we analyze the structure of the optimal policy and characterize its numerical robustness through numerical applications solved by dynamic programming. Then, we analyze two purchaser incentive schemes observed in practice. First, we describe some theoretical properties of the policies associated with these two schemes (schemes I and II) and show that these policies exhibit nonoptimal structures. Second, we estimate the quantitative loss for typical parameter values and, in particular, we show that for certain businesses this loss is significant. Then, we propose two easy-to-implement improvements (schemes III and IV), which result in near-optimal solutions and a significant impact on purchasing cost performances

Emergence of Power Laws in Online Communities: The Role of Social Mechanisms and Preferential Attachment

S. JOHNSON, S. FARAJ, S. KUDARAVALLI

MIS Quarterly

septembre 2014, vol. 38, n°3, pp.795-823

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Online communities, scale-free, power-law distribution, preferential attachment, social exchange, reciprocity, simulation

http://misq.org/misq/downloads/download/article/1113/


Online communities bring together individuals with shared interest in joint action or sustained interaction. Power lawdistributions of user popularity appear ubiquitous in online communities but their formation mechanisms are not wellunderstood. This study tests for the formation of power law distributions via the mechanisms of preferential attachment,least efforts, direct reciprocity, and indirect reciprocity. Preferential attachment, where new entrants favor connectionswith already popular participants, is the predominant explanation suggested by prior literature. Yet, the attribution ofpreferential attachment or any other mechanism as a single unitary reason for the emergence of power law distributionsruns contrary to the social nature of online communities and does not account for diversity of participants’ motivation.Agent-based modeling is used to test if a single social mechanism alone or multiple mechanisms together can generatepower law distributions observed in online communities. Data from 28 online communities is used to calibrate, validate,and analyze the simulation. Simulated communication networks are randomly generated according to parameters foreach hypothesis. The fit of the power law distribution in the model testing subset is then compared against the fit forthese simulated networks. The major finding is that, in contrast to research in more general network settings, neitherpreferential attachment nor any other single mechanism alone generates a power law distribution. Instead, a blendedmodel of preferential attachment with other social network formation mechanisms was most consistent with power lawdistributions seen in online communities. This suggests the need to move away from stylized explanations of networkemergence that rely on single theories toward more highly socialized and multitheoretic explanations of communitydevelopment

Intra-organizational information asymmetry in offshore ISD outsourcing

S. M. NUWANGI, D. SEDERA, S. C. SRIVASTAVA, G. MURPHY

VINE

2014, vol. 44, n°1, pp.94-120

Départements : Informations Systems and Operations Management, GREGHEC (CNRS)

Mots clés : Offshore outsourcing, Agency theory, Information asymmetry, Information system development


Contemporary offshore Information System Development (ISD) outsourcing is becoming even more complex. Outsourcing partner has begun ‘re-outsourcing’ components of their projects to other outsourcing companies to minimize cost and gain efficiencies. This paper aims to explore intra-organizational Information Asymmetry of re-outsourced offshore ISD outsourcing projects.Design/methodology/approach - An online survey was conducted to get an overall view of Information Asymmetry between Principal and Agents (as per the Agency theory).Findings - Statistical analysis showed that there are significant differences between the Principal and Agent on clarity of requirements, common domain knowledge and communication effectiveness constructs, implying an unbalanced relationship between the parties. Moreover, our results showed that these three are significant measurement constructs of Information Asymmetry.Research limitations/implications - In our study we have only considered three main factors as common domain knowledge, clarity of requirements and communication effectiveness as three measurement constructs of Information Asymmetry. Therefore, researches are encouraged to test the proposed constructs further to increase its precision.Practical implications - Our analysis indicates significant differences in all three measurement constructs, implying the difficulties to ensure that the Agent is performing according to the requirements of the Principal. Using the Agency theory as theoretical view, this study sheds light on the best contract governing methods which minimize Information Asymmetry between the multiple partners within ISD outsourcing organizations.Originality/value - Currently, to the best of our knowledge, no study has undertaken research on Intra-organizational Information Asymmetry in re-outsourced offshore ISD outsourcing projects


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