22. 高品質達成を妨げる情報の非対称性
150,000
100,000
Average
Advertised
Download
Speed (Mbps)
50,000
0
Sweden
0 250,000 500,000 750,000 1,000,000
Fastest Download Speed (Mbps)
Source: Created on the basis of http://www.oecd.org/sti/broadband/oecdbroadbandportal.htm
情報通信学会秋季個人研究発表@カンファレンスルームAP東京丸の内
Japan
Slovenia
USA
Australia
Ireland
As of Sep. 2012
75%
50%
25%
Japan (Nov. 2009)
0%
Australia (2008 Q4)
Ireland (2008)
USA (2009)
UK (May 2010)
Japan (Mar. 2013)
Japan (Mar. 2014)
Japan (Mar.-Apr. 2012)
Japan (Jan. 2011)
0 10 20 30 40
Actual Speed/
Advertised
Speed
Average Actual Download Speed(Mbps)
Note: Due to the inconsistency between individual nation’s estimates, this
graph is for reference only.
Source: Created on the basis of Akamai, Epitiro, FCC, and the author.