VoteWorld Comparative Parliamentary
Roll-Call Voting Reference File
House of Representatives
House of Counsilors
Size of parliament:
480 (House of Representatives)
242 (House of Councilors)
Form of government: Parliamentary
House of Representatives: mixed (300
plurality, 180 PR)
House of Councilors: mixed (96 SNTV, 147 PR)
Continuous democracy since: 1946
Last parliamentary election: 11 September 2005
Freedom House political freedom score in 2006: 1
Population in 2006: 127.6 million
Cox, Gary W., Mikitaka Masuyama and Mathew D. McCubbins
(2000) eAgenda Power in the Japanese House of Representativesf,
Japanese Journal of Political Science 1(1): 1-22.
Kato, Junko (1998) eWhen the Party Breaks Up:
Exist and Voice among Japanese Legislatorsf, American Political
Science Review 92 (4): 857-870.
Reed, Steven R. and Ethan Scheiner (2003) eElectoral
Incentives and Policy Preferences: Mixed Motives Behind Party Defections
in Japanf, British Journal of Political Science 33: 469-490.
(House of Councilors)
zip file consists of the following Excel
This file contains bill
codes, bill names (in Japanese), short descriptions
about each bill, voting dates, aggregate-level voting
These files contain
information about the voting behavior of each Diet member. Each
file covers three years since the House of Counsilors has an
election every three years. The data includes all
bills that were voted by open
ballot. (Until 1998, most bills were voted not by open ballot but by
rising, in which cases it is impossible to identify how
each legislator voted.)
The first column of each file represents
legislator names. The second column provides legislator IDs.
The third to seventh columns are for district, party affiliation at
the beginning of each term, party affiliation at the end of each term,
gender (1=male, 2=female), birth year, respectively.
eighth column shows the highest education of each legislator.
The codes for this variable are the following:
2=Junior high school
9=Other kinds of schools
The other columns show how
each Diet member voted.
The codes for vote decisions are as
55=President (did not
56=Vice-president (did not vote)
88=Did not vote
Citation should be
to the Ikuo Kabashima Seminar at University of Tokyo. Shiro Sakaiya
(University of California, Berkeley) translated the data into
Contact: Shiro Sakaiya (University of California, Berkeley)