A Cognitive Model of Individual Well-Being

I. GILBOA, D. Schmeidler

Social Choice and Welfare

2000, vol. 12, pp.269-288

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

Agency conflicts in public and negotiated transfers of corporate control


The Journal of Finance

avril 2000, vol. 55, n°2, pp.647-677

Départements : Finance, GREGHEC (CNRS)

Mots clés : block trade ; Corporate Governance ; Ownership structure ; Small shareholders ; Takeover ; Theory

Alliances versus acquisitions: choosing the right option


European Management Journal

février 2000, vol. 18, n°1, pp.63-69

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

Recently, a wave of corporate acquisitions has swept across Europe, prompted by liberalisation and unification in the European Union. The authors ask the question: Has this made the traditional preference by European firms for alliances and co-operative strategies obsolete? Bearing in mind that, in global terms, alliances are popular, another question is: Should European firms use their experiences in alliances to develop new alliance strategies as an alternative to joining the trend to acquisitions?After a review of the European model of alliances, the authors discuss the pros and cons and rationale for horizontal acquisitions and scale alliances, and argue in favour of more aggressive complementary alliances combined with mergers and acquisitions to expand in Europe as well as globally.

Alternative Rating Procedures for the Measurement of Personal Values


Public Opinion Quarterly

2000, vol. 64, n°3, pp.271-298

Départements : Marketing, GREGHEC (CNRS)

An Experimental Study of Updating Ambiguous Beliefs

M. Cohen, I. GILBOA, J. Jaffray, D. Schmeidler

Risk, Decision, and Policy

2000, vol. 5, pp.123-133

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

Calculating the Expectation and Variance of the Present Value for a Random Profit Stream of Uncertain Duration

Y. Gerchak, T. B. ASTEBRO

Engineering and Process Economics

2000, vol. 45, n°4, pp.339-349

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

We derive the mean and variance of the random discounted sum when Nis uncertain, as are the Xn's. This quantity arises in applications involving random cash-flows over an uncertain number of years. One such application is R&D projects, where both the magnitude and duration of cash-flows are uncertain at the time of investment decision. Previous models have assumed cash-flow duration to be certain. We relax this assumption. We then specialize these results to geometric, mixed-geometric and Poisson distributions of the cash-flow duration.

Case-Based Knowledge and Induction

I. GILBOA, D. Schmeidler

IEEE Transactions on Systems, Man, and Cybernetics - A

2000, vol. 30, pp.85-95

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

Core Competencies R&D Management and Partnerships'


European Management Journal

octobre 2000, vol. 18, n°5, pp.476-487

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

Mots clés : Core Competencies, R&D, Strategic Management, High-tech

Constantly focused on the role of competencies and resources, firms' strategic management teams are becoming increasingly interested in discovering an effective way of managing the competencies that they possess. In high-tech sectors, these competencies have a direct impact on the firm's future competitive positioning. In other sectors, technological competencies will determine the renewal of product lines. This article examines how firms manage their proprietary research and development programmes and how they succeed in establishing a co-operative relationship with their environment. Our background research includes forty interviews conducted in both the US and Europe

Creating Competencies Through Collaboration: -The Case of EUREKA R&D Consortia

B. QUÉLIN, C. Mothe

European Management Journal

décembre 2000, vol. 18, n°6, pp.590-604

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

Mots clés : Competence, Technological resources, R&D; Consortium, Co-operation

This article discusses the originality of European EUREKA consortia. Formed at the initiative of member firms, these consortia generally adopt a decentralised structure. Their main purpose is to conduct applied research, with the ultimate goal of exploiting its commercial opportunities. The consortia strive to ensure collaboration among firms in different countries, and at times, from different industries. Examining the management of R&D consortia, this article focuses primarily on the creation of new knowledge and competencies and on the benefits that member firms can reap from collaboration. Based on 20 interviews with project managers, the article brings to light two main observations: (1) the leader's positioning is a determining factor, and (2) a perfect balance between the firm's technological development and the consortium's strategic orientation facilitates the acquisition of competencies

Decision Aids and Compensatory Information Processing


Journal of Behavioral Decision Making

2000, vol. 13, n°1, pp.91-106

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

Mots clés : decision support;decision strategy;effort–accuracy trade-offs

This paper examines the role of computer-based decision aids in reducing cognitive effort and therefore influencing strategy selection. It extends and complements the work reported in the behavioral decision theory literature on the role of effort and accuracy in choice tasks. The central proposition of the research is that if a decision aid makes a strategy that should lead to a more accurate outcome at least as easy to employ as a simpler, but less accurate, heuristic, then the use of a decision aid should induce that more accurate strategy and as a consequence improve decision quality. Otherwise, a decision aid may only influence decision-making efficiency. This occurs because decision makers use a decision aid in such a way as to minimize their overall level of effort expenditure. Results from a laboratory experiment support this proposition. When a more accurate normative strategy is made less effortful to use, it is used. This result is consistent with the findings of our prior studies, but more clearly demonstrates that decision aids can induce the use of normatively oriented strategies. The key to inducing these strategies is to make the normative strategy easier to execute than competing alternative strategies