カミムラ　ケイスケ   上村　圭介   外国語学部 日本語学科   教授

■ 標題   Policy-Oriented Evaluation of the Expansion of Top Level Domain Name Space

■ 概要   This study is an attempt to estimate the essentiality of the new generic top-level domains, which were newly introduced to the domain name system according to ICANN's New gTLD Program, and to draw implications on Internet policy for both national governments and ICANN. Based on quantitative analyses, the author finds that the effect of the registration fee on the number of domain name registrations is significantly different between the generic and geographic gTLD's, and between the generic and internationalised gTLD's, thus concluding that the geographic and internationalised gTLD's have a higher degree of essentiality and that they cater to different demands of the domain name registrants. Based on the findings, the author also draws two policy implications. First, the expansion of the top-level domain name space, which ICANN has implemented over years, is considered to serve real-world user demands. Second, considering the higher degree of essentiality, the geographic gTLD's, unlike new gTLD's of other types, may well fall under some regulatory oversight in order to ensure stability and trust among the domain name registrants.   単著   GigaNet: Global Internet Governance Academic Network, Annual Symposium 2016   Global Internet Governance Academic Network      2017/02

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