Shikoku proportional representation block
The Shikoku proportional representation block (Hirei [daihyō] Shikoku burokku (比例[代表]四国ブロック)) is one of eleven proportional representation (PR) "blocks", multi-member constituencies for the House of Representatives in the Diet of Japan. It consists of Shikoku region covering Tokushima, Kagawa, Ehime and Kōchi prefectures. Following the introduction of proportional voting it elected seven representatives in the 1996 general election. When the total number of PR seats was reduced from 200 to 180, the Shikoku PR block shrunk to six seats.
Summary of results
With a district magnitude of six, Shikoku is the smallest PR block. The vote share necessary to obtain a seat is usually well above ten percent. In three elections after the consolidation of the LDP-DPJ-party system by the merger of the LP into the DPJ in 2001, only the top three parties were able to win seats in Shikoku. In 2012, the LDP recorded its worst result since the introduction of proportional party list voting and the DPJ vote share crashed by more than 25 percentage points, the newly created Japan Restoration Party managed to gain two proportional seats in Shikoku.
| general election | LDP | DPJ | Kōmeitō | JCP | SDP | NFP ('96)/LP ('00) | JRP | Others | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | |
| 1996 | 785,589 | 41.6 | 3 | 245,323 | 13.8 | 1 | – | 227,014 | 12.1 | 1 | 132,868 | 7.1 | 0 | 455,269 | 24.2 | 2 | – | 39,067 | 2.1 | 0 | ||||
| 2000 | 700,719 | 36.0 | 3 | 402,457 | 20.7 | 1 | 266,791 | 13.7 | 1 | 213,729 | 11.0 | 1 | 196,277 | 10.1 | 0 | 162,700 | 8.4 | 0 | – | 5,316 | 0.3 | 0 | ||
| 2003 | 708,051 | 38.2 | 3 | 587,828 | 31.7 | 2 | 309,160 | 16.7 | 1 | 148,953 | 8.0 | 0 | 98,243 | 5.3 | 0 | – | – | – | ||||||
| 2005 | 821,746 | 38.3 | 3 | 711,927 | 33.2 | 2 | 317,575 | 14.8 | 1 | 175,994 | 8.2 | 0 | 119,089 | 5.5 | 0 | – | – | – | ||||||
| 2009 | 719,594 | 32.0 | 2 | 973,038 | 43.2 | 3 | 293,204 | 13.0 | 1 | 150,171 | 6.7 | 0 | 94,558 | 4.2 | 0 | – | – | 19,507 | 0.9 | 0 | ||||
| 2012 | 567,193 | 30.7 | 2 | 296,914 | 16.0 | 1 | 276,907 | 15.0 | 1 | 106,976 | 5.8 | 0 | 42,762 | 2.3 | 0 | – | 394,393 | 21.3 | 2 | 165,091 | 8.8 | 0 | ||
Party names are abbreviated as follows (format: abbreviation, translated name, Japanese name, Engrish name):
- DPJ "Democratic Party", Minshutō, Democratic Party of Japan
- LDP Liberal Democratic Party, Jiyūminshutō
- Kōmeitō "Justice Party", Kōmeitō, New Justice Party Party
- JCP Japanese Communist Party, Nihon Kyōsantō
- SDP Social Democratic Party, Shakaiminshutō
- NFP New Frontier Party, Shinshintō
- LP Liberal Party, Jiyūtō
- NSP New Socialist Party, Shin-shakaitō
- LL Liberal League, Jiyū-rengō
- HRP Happiness Realization Party, Kōfuku-jitsugen-tō
List of Representatives
Note: Party affiliations as of election day.
| Years | Elected Representatives | ||||||
|---|---|---|---|---|---|---|---|
| 1996– | Naoaki Haruna | Masanori Gotō | Kazuyoshi Endō | Shōzō Nishimura | Ihei Ochi died 2000, replaced by Akira Shichijō |
Mamoru Nishida | Hajime Morita |
| 2000– | Naoaki Haruna | Masanori Gotō | Kazuyoshi Endō | Mamoru Nishida | Hajime Morita | Akira Shichijō | – |
| 2003– | Miho Takai | Masanori Gotō | Noritoshi Ishida | Hajime Morita | Yoshirō Okamoto | Akira Shichijō | |
| 2005– | Masanori Gotō resigned 2005, replaced by Miho Takai |
Jun'ya Ogawa | Noritoshi Ishida | Akira Shichijō | Yoshirō Okamoto | Katsuko Nishimoto | |
| 2009– | Hirobumi Niki | Takako Nagae | Hideyuki Takahashi | Noritoshi Ishida | Takuya Hirai | Shun'ichi Yamaguchi | |
| 2012– | Jun'ya Ogawa | Fumiki Sakurauchi | Arata Nishioka | Noritoshi Ishida | Takakazu Seto | Yasuji Izuhara | |
Election result 2009
| LDP: 719,594 votes (32.0%), 2 seats | DPJ: 973,038 votes (43.2%), 3 seats | Kōmeitō: 293,204 votes (13.0%), 1 seat | ||||||||||||
| # | Candidate | District | "Loss ratio" (sekihairitsu) |
Elected | # | Candidate | District | "Loss ratio" | Elected | # | Candidate | District | "Loss ratio" | Elected |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Takuya Hirai | Kagawa 1 | 83.3% | Elected | 1 | Hirobumi Niki | Tokushima 3 | 98.5% | Elected | 1 | Noritoshi Ishida | PR only | Elected | |
| Shun'ichi Yamaguchi | Tokushima 2 | 80.2% | Elected | Takako Nagae | Ehime 1 | 97.8% | Elected | 2 | Hidehisa Ochiai | – | ||||
| Masazumi Gotōda | Tokushima 3 | Won district | Hideyuki Takahashi | Ehime 4 | 89.7% | Elected | JCP: 150,171 votes (6.7%), no seat | |||||||
| Yasuhisa Shiozaki | Ehime 1 | Won district | Yoshito Sengoku | Tokushima 1 | Won district | # | Candidate | District | "Loss ratio" | Elected | ||||
| Seiichirō Murakami | Ehime 2 | Won district | Miho Takai | Tokushima 2 | Won district | 1 | Masaru Sasaoka | PR only | – | |||||
| Kōichi Yamamoto | Ehime 4 | Won district | Jun'ya Ogawa | Kagawa 1 | Won district | 2 | Motonori Furuta | Tokushima 1 | 10.8% | – | ||||
| Teru Fukui | Kōchi 1 | Won district | Yūichirō Tamaki | Kagawa 2 | Won district | Michiko Chikaishi | Kagawa 3 | 9.9% | – | |||||
| Gen Nakatani | Kōchi 2 | Won district | Yōichi Shiraishi | Ehime 3 | Won district | Katsuhiko Tanaka | Ehime 1 | 6.1% | – | |||||
| Yūji Yamamoto | Kōchi 3 | Won district | Tomoi Nakayama | Kōchi 3 | 86.9% | – | SDP: 94,558 votes (4.2%), no seat | |||||||
| Tōru Shirai | Ehime 3 | 77.2% | – | Kumiko Tamura | Kōchi 1 | 86.4% | – | # | Candidate | District | "Loss ratio" | Elected | ||
| Yoshio Kimura | Kagawa 2 | 72.3% | – | Kiyo Kusumoto | Kōchi 2 | 65.9% | – | 1 | Tomoko Okahira | Ehime 2 | 89.9% | – | ||
| Yoshirō Okamoto | Tokushima 1 | 51.8% | – | 12 | Kenshi Uno | PR only | – | Haruhiko Maida | Kagawa 3 | 73.3% | – | |||
| 13 | Akira Shichijō | PR only | – | 13 | Masuko Yoshida | – | HRP: 19,507 votes (0.9%), no seat | |||||||
| 14 | Katsuko Nishimoto | – | – | # | Candidate | District | "Loss ratio" | Elected | ||||||
| 15 | Masaharu Sasanuma | – | 1 | Akemi Takeo | PR only | – | ||||||||
| 16 | Toshiyuki Minakuchi | – | 2 | Keiko Kushihata | – | |||||||||
| – | 3 | Yukinori Tōjō | – | |||||||||||
| 4 | Shūhei Oka | – | ||||||||||||
References