A Decomposition and Empirical Examination of Information and System Quality


Journal of Management Information Systems

mars 2005, vol. 21, n°4, pp.199-235

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

Mots clés : business intelligence software, data warehousing, information quality, information systems success, system quality

Understanding the successful adoption of information technology is largely based upon understanding the linkages among quality, satisfaction, and usage. Although the satisfaction and usage constructs have been well studied in the information systems literature, there has been only limited attention to information and system quality over the past decade. To address this shortcoming, we developed a model consisting of nine fundamental determinants of quality in an information technology context, four under the rubric of information quality (the output of an information system) and five that describe system quality (the information processing system required to produce the output). We then empirically examined the aptness of our model using a sample of 465 data warehouse users from seven different organizations that employed report-based, query-based, and analytical business intelligence tools. The results suggest that our determinants are indeed predictive of overall information and system quality in data warehouse environments, and that our model strikes a balance between comprehensiveness and parsimony. We conclude with a discussion of the implications for both theory and the development and implementation of information technology applications in practice

A Theoretical Integration of User Satisfaction and Technology Acceptance


Information Systems Research

mars 2005, vol. 14, n°1, pp.85-102

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

Mots clés : user satisfaction; technology acceptance model; information systems success; theory of reasoned action; system quality; information quality

In general, perceptions of information systems (IS) success have been investigated within two primary research streams—the user satisfaction literature and the technology acceptance literature. These two approaches have been developed in parallel and have not been reconciled or integrated. This paper develops an integrated research model that distinguishes beliefs and attitudes about the system (i.e., object-based beliefs and attitudes) from beliefs and attitudes about using the system (i.e., behavioral beliefs and attitudes) to build the theoretical logic that links the user satisfaction and technology acceptance literature. The model is then tested using a sample of 465 users from seven different organizations who completed a survey regarding their use of data warehousing software. The proposed model was supported, providing preliminary evidence that the two perspectives can and should be integrated. The integrated model helps build the bridge from design and implementation decisions to system characteristics (a core strength of the user satisfaction literature) to the prediction of usage (a core strength of the technology acceptance literature)

Border Crossing: Bricolage and the Erosion of Categorical Boundaries in French Gastronomy

H. Rao, P. Monin, R. DURAND

American Sociological Review

décembre 2005, vol. 70, n°6, pp.968-992

Départements : Stratégie et Politique d’Entreprise, GREGHEC (CNRS)

Sociological researchers have studied the consequences of strong categorical boundaries, but have devoted little attention to the causes and consequences of boundary erosion. This study analyzes the erosion of categorical boundaries in the case of opposing category pairs. The authors propose that categorical boundaries weaken when the borrowing of elements from a rival category by high-status actors triggers emulation such that the mean number of elements borrowed by others increases and the variance in the number of elements borrowed declines. It is suggested that penalties to borrowing in the form of downgraded evaluations by critics exist, but decline as the number of peers who borrow increases. The research setting is French gastronomy during the period from 1970 to 1997, when classical and nouvelle cuisines were rival categories competing for the allegiance of chefs. The results broadly support the authors' hypotheses, indicating that chefs redrew the boundaries of culinary categories, which critics eventually recognized. Implications for research on blending and segregating processes are outlinedRestaurants, Motion pictures, Studies, Colleges & universities, Processes, Nature, Competition, Strategic management, Researchers, Research & development--R&D, Organizational behavior, Acquisitions & mergers

Choice-based Elicitation and Decomposition of Decision Weights for Gains and Losses under Uncertainty

M. ABDELLAOUI, M. Vossmann, M. Weber

Management Science

2005, vol. 51, n°9, pp.1384-1399

Départements : Economie et Sciences de la décision, GREGHEC (CNRS)

Mots clés : Decision under uncertainty, Choquet expected utility, Cumulative prospect theory, Decision weights, Choice-based probabilities, Probability weighting

Continuous-Time Games of Timing

R. Laraki, E. Solan, N. VIEILLE

Journal of Economic Theory

février 2005, vol. 120, n°2, pp.206-238

Départements : Economie et Sciences de la décision, GREGHEC (CNRS)

Mots clés : Timing games, Continuous-time games, Games of timing, War of attrition, Preemption games

We address the question of existence of equilibrium in general timing games with complete information. Under weak assumptions, any two-player timing game has a Markov subgame perfect -equilibrium, for each >0. This result is tight. For some classes of games (symmetric games, games with cumulative payoffs), stronger existence results are established

Développer l'innovation

T. Atamer, R. DURAND, E. Reynaud

Revue Française de Gestion

2005, vol. 31, n°155, pp.13-21

Départements : Stratégie et Politique d’Entreprise, GREGHEC (CNRS)

Elaboration et mise en place d'un système d'information hospitalier au sein d'un service d'oncologie médicale


Santé et systémique

2005, vol. 4

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

Fact-Free Learning

E. Aragones, I. GILBOA, A. Postlewaite, D. Schmeidler

American Economic Review

2005, vol. 95, pp.1355-1368

Départements : Economie et Sciences de la décision, GREGHEC (CNRS)

How Do We Memorize Prices? A Numerical Cognition Perspective

Z. Kenesei, X. Drèze, G. LAURENT, M. VANHUELE

Advances in Consumer Research

2005, vol. 32, pp.447-448

Départements : Marketing, GREGHEC (CNRS)

IPO Pricing in "Hot" Market Conditions: Who Leaves Money on the Table?


The Journal of Finance

février 2005, vol. 60, n°1, pp.487-521

Départements : Finance, GREGHEC (CNRS)

This paper explores the impact of investor sentiment on IPO pricing. Using a model in which the aftermarket price of IPO shares depends on the information about the intrinsic value of the company and investor sentiment, I show that IPOs can be overpriced and still exhibit positive initial return. A sample of recent French offerings with a fraction of the shares reserved for individual investors supports the predictions of the model. Individual investors' demand is positively related to market conditions. Moreover, large individual investors' demand leads to high IPO prices, large initial returns, and poor long-run performance