통신서비스 시장에서의 유무선 가입자 대체

Abstract

We investigate substitution between fixed access and wireless access subscribers in the telephone services based on a generalized multi-product diffusion model extending the diffusion models by Casado-L'opez-S'anchez(1996) and Noguchi and Takashima(2000).Our results indicate strong differences in the diffusion processes of the two service subscribers: non-existence of the imitation effect in the diffusion of the fixed access subscribers versus existence of the limitation effect in the diffusion of the wireless acces subscribers; existence of the innovation effect both in the diffusion of the fixed access subscribers and the diffusion of the wireless access