Competitive effects on technology diffusion / Thomas S. Robertson, Hubert Gatignon.
- Philadelphia, Pa. : Wharton School, University of Pennsylvania, Marketing Dept., 
25, 12 leaves : ill. ; 28 cm.
- Working paper (Wharton School. Marketing Dept.) ; no. 85-058.
Working paper / Wharton School, University of Pennsylvania, Marketing Dept. ; no. 85-058