5Grover, V. , Ramanlai, P. , and Segars, A. H. Information Exchange in Electronie Markets: Implications for Market Structures [ J ]. International Joumal of Eleetronie Commerce ( 3:4) , Summer 1999 : 89 - 102.
7Bailey, J. P. and Bakos, Y. An Exploratory Study of the E- merging Role of Electronic Inermediaries [ J ]. International Journal of Electronic Commerce ( 1 : 3 ), 1997, (4) : 7 - 20.
8Bakos, Y. A Strategic Analysis of Eletronic Market places [ J ]. MIS Quarterly( 15:3 ), 1991b, (9) :295 - 310.
9Lee, B. T. , and Yoo, B. J. Internalization of Electronic Auc- tion Market and Information Asymmetry in Electronic Com- merce[ J]. Presented at the 11 th Workshop on Information Systems and Economics ( WISE - 99 ), Charlotte, NC, Deeember 1999.