O. Allal-cherif, An economic model for electronic marketplaces, PhD thesis in Management Sciences, 2007.

J. Y. Bakos, Reducing Buyer Search Costs: Implications for Electronic Marketplaces, Management Science, vol.43, issue.12, pp.1676-92, 1997.
DOI : 10.1287/mnsc.43.12.1676
URL : http://archive.nyu.edu/bitstream/2451/27833/2/CeDER-PP-1997-01.pdf

B. Ballaz, Le management des achats et de la chaîne intégrée clientsfournisseurs : le rôle clé du système d'information, pp.87-109, 2002.

E. Brousseau, The Governance of Transactions by Commercial Intermediaries: An Analysis of the Re-engineering of Intermediation by Electronic Commerce, International Journal of the Economics of Business, vol.10, issue.3, p.3, 2002.
DOI : 10.1080/019722497129241

R. Calvi and P. Y. Barreyre, La participation des Services achats au développement des produits nouveaux : une approche organisationnelle, Colloque International de Génie Industriel, pp.4-5, 1997.

J. L. Cavinato, Fitting purchasing to the five stages of strategic management, European Journal of Purchasing & Supply Management, vol.5, issue.2, pp.75-83, 1999.
DOI : 10.1016/S0969-7012(99)00012-X

P. D. Cousins, B. Lawson, and B. Squire, An empirical taxonomy of purchasing functions, International Journal of Operations & Production Management, vol.26, issue.7, pp.775-794, 2006.
DOI : 10.1016/S0272-6963(03)00037-8

P. Julien, P. Lamonde, and D. Latouche, La méthode des scénarios, une réflexion sur la démarche et la théorie de la prospective, Travaux et Recherche de Prospective, coll. Schéma général d'aménagement de la France, N°59, La documentation française, 1975.

A. Ordanini, What drives market transactions in B2B exchanges?, Communications of the ACM, vol.49, issue.4, pp.89-93, 2006.
DOI : 10.1145/1121949.1121953

R. Ruiz and J. A. , European study about e-purshasing, Strategy and International Affaires, 2005.

P. Schubert and M. Ginsburg, Virtual communities of transaction: the role of personalization in electronic commerce, Electronic Markets, vol.10, pp.45-55, 2000.

D. J. Teece, G. Pisano, and A. Shuen, Dynamic Capabilities and Strategic Management, Strategic Management Journal, vol.18, pp.7-509, 1997.

J. Thamain, Anticiper en GRH, pr??vision et prospective, un diagnostic des pratiques et des repr??sentations, Management & Avenir, vol.25, issue.5, 2009.
DOI : 10.3917/mav.025.0272

P. Ratnasingam, D. Gefen, and P. A. Pavlou, The Role of Facilitating Conditions and Institutional Trust in Electronic Marketplaces, Journal of Electronic Commerce in Organizations, vol.3, issue.3, pp.69-82, 2005.
DOI : 10.4018/jeco.2005070105

R. Tassabehji and A. Moorhouse, The changing role of procurement: Developing professional effectiveness, Journal of Purchasing and Supply Management, vol.14, issue.1, pp.55-68, 2008.
DOI : 10.1016/j.pursup.2008.01.005

J. Vlcek, Le profil de la fonction d'acheteur et les défis du futur, European Center for Research in Purchasing and Supply, 2002.