Acceso usuarios
Maija Gao, Ari Hyytinen, Otto Toivanen 
We would like to thank a coeditor and two referees for extremely helpful and detailed comments. Colin Cameron, Helen Weeds, Glenn A. Woroch and seminar participants at Department of Economics at University of California, Berkeley, Haas School of Business, the Nordic ICT workshop in Helsinki, EARIE 2004 Berlin, the CEPR conference on economics of electronic communication markets at IDEI, Toulouse, London School of Economics, University of Bern, and KU Leuven also provided helpful comments for which we are thankful. We also thank the individuals who generously gave their time and shared their views either in interviews and/or in the survey we carried out. This research is part of the wireless communication research program of ETLA, the Research Institute of the Finnish Economy. Financial support from Nokia and Tekes is gratefully acknowledged. Hyytinen and Toivanen also gratefully acknowledge financial support by the Yrjö Jahnsson Foundation. Much of this research was completed while Hyytinen and Toivanen were visiting University of California, Berkeley, whose hospitality is gratefully acknowledged. The views expressed are those of the authors and do not necessarily reflect the views of the organizations the authors are affiliated with.
