摘要
7-ELEVEN 是虛擬行動網路經營者(MVNO)，承租遠傳電信的部分頻寬，再以自
己的品牌經營行動電話服務。因此，遠傳與7-ELEVEN 之間存在著「既合作，
又競爭」的關係：在合作層面上，兩者因為租賃關係而互利；在競爭層面上，兩
者必須在同一市場上爭取用戶。這種互惠與敵對的矛盾關係，激發出一項有趣的
研究：為什麼行動電話公司願意將頻寬租給MVNO 使用？本文研究此項動機，
並探討在均衡時，市場上會出現多少家MVNO。
ABSTRACT
7-ELEVEN, a chain of convenience stores in Taiwan, is a mobile virtual network
operator (MVNO). It provides mobile phone services by using Far Eastone’s network
assets under its own brand name. As such, there is a relationship involving both
cooperation and competition between the two companies. While the two companies
benefit each other under a lease agreement, they are competitors in the same user
market. The paper would like to explore this seemingly contradictory relationship:
why a mobile phone company would be willing to lease its bandwidth to a MVNO?
Furthermore, the optimum and equilibrium numbers of MVNOs are also examined in
this paper.
7-ELEVEN 是虛擬行動網路經營者(MVNO)，承租遠傳電信的部分頻寬，再以自
己的品牌經營行動電話服務。因此，遠傳與7-ELEVEN 之間存在著「既合作，
又競爭」的關係：在合作層面上，兩者因為租賃關係而互利；在競爭層面上，兩
者必須在同一市場上爭取用戶。這種互惠與敵對的矛盾關係，激發出一項有趣的
研究：為什麼行動電話公司願意將頻寬租給MVNO 使用？本文研究此項動機，
並探討在均衡時，市場上會出現多少家MVNO。
ABSTRACT
7-ELEVEN, a chain of convenience stores in Taiwan, is a mobile virtual network
operator (MVNO). It provides mobile phone services by using Far Eastone’s network
assets under its own brand name. As such, there is a relationship involving both
cooperation and competition between the two companies. While the two companies
benefit each other under a lease agreement, they are competitors in the same user
market. The paper would like to explore this seemingly contradictory relationship:
why a mobile phone company would be willing to lease its bandwidth to a MVNO?
Furthermore, the optimum and equilibrium numbers of MVNOs are also examined in
this paper.