This is a special issue that thoroughly investigated the communication environments of 50 cities around the world as a special feature for our 500th issue. - Title: Nikkei Communications December 15, 2007 Issue - Special Feature: 500th Issue Special Feature: Communication Environments in 50 Cities Worldwide - Publication Date: December 15, 2007 - Issue Number: No. 500 - Content: The "common sense" of communication that differs greatly between Japan and overseas. Thank you for looking.