Présentation des publications les plus importantes

1. Mortehan O., « The Role of Firms Collaborative Agreements in the I.T. Industry Transformation », Technology Analysis and Strategic Management, 20 pages, volume 16(1), mars 2004.

While most articles on firm partnerships focus on the firm, the alliance or networks, we investigate the role of collaborative agreements during industrial transformation phases. Observation of a single industry, the Information Technology (IT) industry, shows that the growth of collaborative agreements formed by industry leaders in the early 1990s can be interpreted as an attempt to absorb a major industry shock characterized by vertical disintegration and the emergence of 'divided technical leadership'. Such firms have adopted collaborative agreements to maintain their leadership by controlling new entrants in the new industry segments that have resulted from the disintegration. Partnerships became a strategic component of the new 'divided technical leadership' market structure that emerged from the competitive crash of the early 1990s.

2. Mortehan O. , van Pottelsberghe B., "The Impact of Collaborative Agreement on Firms' Performances: The case of the IT industry in the 90's" , IIR WP#03-14, Working paper, Hitotsubashi University , août 2003.

Hitotsubashi University IIR

In the I.T. industry, which was confronted to a major transition phase during the 90’s, partnerships became a strategic component of the new “divided technical leadership” which emerged from the industry vertical disintegration. This paper attempts to evaluate the impact of 1676 partnerships on the financial performance (revenue and profit) and innovative efforts (R&D intensity) of 14 large firms and 725 of their partners. On average, there is a positive impact of collaborative agreements on large incumbents and their partners’ financial performance (revenue and income). These results vary according to the type, form and content of the agreement and according to the partner’s field of activity. Incumbents get the most benefit from broad scope informal alliances while smaller and more hierarchical forms of partnerships (consortia, joint-ventures) do profit to their partners. For large incumbents, collaborative agreement are more effective when performed with partners from the services industry than with partners from the I.T. industry. The role of partnerships in such an industry transformation phase with heavy cost pressure is confirmed by the negative impact of collaborative agreements on internal R&D spending.

3. Mortehan O., van Pottelsberghe B., "Collaborative agreements and R&D intensity", article présenté en août 2005 lors du congrès annuel de l’ Academy of Management américaine.

Academy of Management Honolulu - Honolulu Program Components: Type of Sessions

4. Contribution à la mise à jour de l’ouvrage de Comptabilité Générale (F. Khrouz, Solvay business school, 2003) : réalisation des analyses financières à l’aide de l’outil informatique. Relecture de parties du livre.

5. Thèse de doctorat en Sciences de Gestion (décembre 2003)

Cette recherche a eu pour but principal de montrer, à travers l’exemple de l’industrie informatique dans les années 90, que la stratégie de partenariat est aujourd’hui devenue un outil essentiel pour permettre aux entreprises à la tête d’une industrie à forte innovation technologique, confrontée à des changements structurels importants, et en particulier à la désintégration menant au leadership technologique partagé, de maintenir leur position dominante.

Les quatre parties du travail constituent une suite logique d’étapes contribuant chacune à valider la thèse: la partie I porte sur la synthèse des principaux courants de la littérature scientifique sur les accords de collaboration et leur relation avec l’évolution des industries. Le but poursuivi dans la partie II est de décrire les changements intervenus dans l’industrie informatique au cours des années 90 et de formuler l’hypothèse d’une relation entre ces changements et la stratégie des firmes dans le domaine des accords de collaboration. Cette hypothèse est vérifiée empiriquement dans les parties III et IV à l’aide d’une banque de données sur les accords de collaboration. La partie III du travail présente les résultats descriptifs et la partie IV les résultats analytiques permettant de valider l’hypothèse.

http://homepages.ulb.ac.be/~omorteha/These.pdf

6. Mortehan O., van Pottelsberghe B., "Collaborative agreements and R&D intensity",Taiwan Academy of Management Journal, Special issue, February 2006.

7. Mortehan O. , van Pottelsberghe B., "The Impact of Collaborative Agreement on Firms' Performances" , Technology Analysis & Strategic Management, Forthcoming.