nep-net New Economics Papers
on Network Economics
Issue of 2010‒05‒02
five papers chosen by
Yi-Nung Yang
Chung Yuan Christian University

  1. A short survey of network economics By Oz Shy
  2. Network Externalities, Transport Costs and Tariffs By Kenji Fujiwara
  3. Characteristics of Real Futures Trading Networks By Junjie Wang; Shuigeng Zhou
  4. Partisan Liberalizations. A New Puzzle from OECD Network Industries?. By FILIPPO BELLOC and ANTONIO NICITA
  5. Empirical Study of IPTV Diffusion: Comparison between Japan and Korea By KINUGASA Satoshi; MOTOHASHI Kazuyuki; Yeong-Wha SAWNG; TERADA Shinichiro

  1. By: Oz Shy
    Abstract: This paper surveys a variety of topics related to network economics. Topics covered include: consumer demand under network effects, compatibility decisions and standardization, technology advances in network industries, two-sided markets, information networks and intellectual property, and social influence.
    Keywords: Consumers' preferences ; Telecommunication ; Technology
    Date: 2010
  2. By: Kenji Fujiwara (Kwansei Gakuin University)
    Abstract: This paper formulates a reciprocal market model of international duopoly with network externalities to reconsider welfare effects of reductions in transport costs and tariffs. Depending on the magnitude of network externalities, we show two possibilities. One of them, which emerges under strong network externalities, illustrates that freer trade unambiguously improves welfare for any initial level of trade barriers. This finding provides an affirmative evaluation of freer trade.
    Keywords: network externality, duopoly, transport costs, tariffs
    Date: 2010–04
  3. By: Junjie Wang; Shuigeng Zhou
    Abstract: Futures trading is the core of futures business, and is considered as a typical complex system. To investigate the complexity of futures trading, we employ the analytical method of complex networks. First, we use real trading records from Shanghai Futures Exchange to construct futures trading networks, in which vertices are trading participants, and two vertices have a common edge if the two corresponding investors simultaneously appear in at least one trading record as a purchaser and a seller respectively. Then, we conduct a comprehensive statistical analysis on the constructed futures trading networks, and empirical results show that the futures trading networks exhibit such features as scale-free structure with interesting odd-even-degree divergence in low degree region, small-world effect, hierarchical organization, power-law betweenness distribution, and shrinkage of both average path length and diameter as network size increases. To the best of our knowledge, this is the first work that uses real data to study futures trading networks, and we argue that the research results can shed light on the nature of real futures business.
    Date: 2010–04
    Abstract: We investigate the political determinants of liberalization in OECD network industries, performing a panel estimation over thirty years, through the largest and most updated sample available. Contrary to traditional ideological cleavages, we find that right-wing governments liberalize less than left-wing ones. This result is confirmed when controlling for the existing regulatory conditions that executives find when elected. Furthermore, governments' heterogeneity, proportional electoral rules, and European Union membership all show positive and statistically significant effects on liberalization. Our findings suggest that, despite the conventional wisdom, the political-economic rationale behind liberalization paths in network industries is far from being assessed.
    Keywords: Liberalization - Network Industries - Government heterogeneity and Partisanship - Electoral systems - Panel data . JEL Classification D72, L50, P16, C23.
    Date: 2010–01–29
  5. By: KINUGASA Satoshi; MOTOHASHI Kazuyuki; Yeong-Wha SAWNG; TERADA Shinichiro
    Abstract: This study analyzes a diffusion pattern of IPTV (Internet Protocol TV), based on TAM (Technology Acceptance Model). RIETI conducted a household survey of IPTV to understand factors behind advancement of "digital conversion" of Internet and broadcasting services in Japan. The results of this survey are compared with those of a similar survey in Korea, conducted by ETRI (Electronics and Telecommunications Research Institute). Our structural equation model (SEM) analysis reveals that "ease-of-use" is an important factor in encouraging non IPTV users in both Japan and Korea to adopt it, but that the path from "usefulness" to "adoption" is stronger for Japanese households. Also in relation to IPTV users' intention to use IPTV, Japanese were directly influenced by "usefulness," while Koreans were not.
    Date: 2010–04

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