It is now widely accepted that Japan has relatively low official barri
ers to merchandise, particularly manufactured goods, trade relative to
other industrial countries. Yet, Japan's current account and trade su
rpluses have encouraged the view that there must be special 'hidden ba
rriers' to accessing the Japanese marker, and a literature has develop
ed on the premise that Japanese business organizations (keiretsu) limi
t foreign penetration of markers of manufactured goods. This paper sur
veys the main elements of this literature and questions some of the as
sumptions upon which recent American policy in this area seems to have
been developed.