ON THE ADOPTION OF INNOVATIONS WITH NETWORK EXTERNALITIES

被引：47

作者：

CABRAL, LMB ^{[1
]}

机构：

[1] UNIV NOVA LISBOA,FAC ECON,P-1000 LISBON,PORTUGAL

来源：

MATHEMATICAL SOCIAL SCIENCES | 1990年 / 19卷 / 03期

关键词：

adoption and diffusion of innovations; Network externalities;

D O I：

10.1016/0165-4896(90)90069-J

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

We present a simple dynamic model of adoption of an innovation when there are 'network' externalities, that is, when one agent's benefit from adoption increases with the number of other adopters. We assume there is a continuum of differentiated potential adopters who are perfectly informed rational agents. Our main conclusion is that if network externalities are strong, then the equilibrium adoption path is discontinuous, even when there is no coordination between potential adopters. We also argue that a steep S-shaped adoption path can be interpreted as the approximation to a discontinuous point (catastrophe) of the equilibrium adoption path. © 1990.

引用

页码：299 / 308

页数：10

共 20 条

[1] COMPETING TECHNOLOGIES, INCREASING RETURNS, AND LOCK-IN BY HISTORICAL EVENTS [J].