Earticle

The study on Wholesale pricing of MVNO using two way interconnection charge system is rare. This paper considers MVNO possessing its own facilities and subscribers. While previous studies focus on wholesale provision by MNO, this paper employs another approach from existing MVNO model. This paper introduces two way interconnection charge system by recognizing that mobile network interconnection is important to complete the call from MNO to MVNO as well as the call from MVNO to MNO. Also it is interesting to analyze wholesale pricing when there is brand loyalty between MNO and MVNO. This paper analyzes retail pricing and wholesale pricing under duopoly competition and drives social optimal solutions using linear city model.

The study on Wholesale pricing of MVNO using two way interconnection charge system is rare. This paper considers MVNO possessing its own facilities and subscribers. While previous studies focus on wholesale provision by MNO, this paper employs another approach from existing MVNO model. This paper introduces two way interconnection charge system by recognizing that mobile network interconnection is important to complete the call from MNO to MVNO as well as the call from MVNO to MNO. Also it is interesting to analyze wholesale pricing when there is brand loyalty between MNO and MVNO. This paper analyzes retail pricing and wholesale pricing under duopoly competition and drives social optimal solutions using linear city model.

이 글은 통신산업에서의 양방향 상호접속에 관한 기존 이론들을 쉽고 직관적으로 소개하는 데에 첫 번째 목적이 있다. 다음으로, 기존 이론들이 모형분석을 위해 사용하고 있는 가정들을 최대한 명시적으로 열거하고 가정의 변화에 따라 결과가 어떤 식으로 바뀌는 지를 살펴봄으로써, 이들 이론을 실제로 적용하고자 하는 경우에 주요 유의사항을 찾아내는 작업을 용이하게 하는 데에 두 번째 목적이 있다. 마지막으로, 기존 이론의 한계점을 제시함으로써 향후 연구방향을 제시하는 데에 세 번째 목적이 있다. 이론적 논의의 주요 함의로는 (i) 양방향 상호접속의 경우 시장봉쇄 및 과당진입 방지, 투자유인 제공 등 전통적인 접속료 규제의 목표에 담합 방지라는 새로운 목표가 추가되어야 하며, (ii) 접속료 수준의 결정에 있어서 구체적인 상황에 따른 신축적인 규제가 필요하다는 점이다.

This paper aims to present a simple survey of two-way interconnection models of telecommunications industries. It examines the assumptions employed in the literature carefully, and shows how the conclusions change as one changes the assumptions. It also tries to provide practical policy prescriptions and future research topics. The main implications are (i) the objective to prevent collusion needs to be added to the traditional objectives of interconnection regulation, and (ii) a flexible approach which considers circumstantial specifics is desired in setting the interconnection charges.

The issues on the interconnection of telecommunications network are recently prevailed in the IT industry. In this study, we classify the network interconnection system into two categories: two way-same price model and two way-different price model. The purpose of this paper is to analyze economic characteristics of optimal settlement system according to each model. One of the most important policy implications we derive through this study is that symmetry between enterprises is required for policy maker or regulatory agency to set an efficient settlement system under two way-same price model, but that symmetry is not necessarily required under two way-same price model.

최근 통신망 상호접속에 관한 이슈가 정보통신산업 부문에서 활발하게 논의되고 있다. 이 논문의 목적은 상호접속체계의 유형을 $\ulcorner$쌍방향 동일요금 접속체계$\lrcorner$ 및 $\ulcorner$쌍방향 개별요금 접속체계$\lrcorner$로 분류하고, 각 유형별로 최적 정산체계의 경제적 특성을 분석하는 것이다. 본 연구를 통하여 얻은 주요 정책적 시사점 중의 하나는 $\ulcorner$쌍방향 동일요금 접속체계$\lrcorner$ 하에서는 기업간 대칭성이 효율적 정산을 위한 필요조건이지만, $\ulcorner$쌍방향 개별요금 접속체계$\lrcorner$하에서는 기업간 대칭성이 반드시 요구되지 않는다는 점이다.

The issues on the interconnection of telecommunications network are recently prevailed in the IT industry. In this study, we classify the network interconnection system into two categories: two way-same price model and two way-different price model. The purpose of this paper is to analyze economic characteristics of optimal settlement system according to each model. One of the most important policy implications we derive through this study is that symmetry between enterprises is required for policy maker or regulatory agency to set an efficient settlement system under two way-same price model, but that symmetry is not necessarily required under two way-same price model.