"Marvin Goodfriend on Electronic Money" in Japanese: Marvin Goodfriendの電子マネーに関して →
The link above is to the post in Japanese, translated by Makoto Shimizu. The English version can be found here.
A Partisan Nonpartisan Blog: Cutting Through Confusion Since 2012
The link above is to the post in Japanese, translated by Makoto Shimizu. The English version can be found here.