Shikoku proportional representation block

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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):

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 Junya Ogawa Masanori Gotō
resigned 2005, replaced by
Miho Takai		 Noritoshi Ishida Akira Shichijō Yoshirō Okamoto Katsuko Nishimoto
2009 Hirobumi Niki Takako Nagae Hideyuki Takahashi Noritoshi Ishida Takuya Hirai Shun'ichi Yamaguchi
2012 Junya Ogawa Fumiki Sakurauchi Arata Nishioka Noritoshi Ishida Takakazu Seto Yasuji Izuhara
2014 Junya Ogawa Hiroyuki Yokoyama Noritoshi Ishida Teru Fukui Takakazu Seto Mamoru Fukuyama

Election results

2014 general election

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Main article: Shikoku proportional representation block election, 2014

Following on from the LDP landslide win at the 2012 general election, in which the party won 12 of the 13 electorates in Shikoku plus two of the six seats from the PR list,[1] the LDP maintained their dominant position in the region by retaining all 10 of their electorates[2] (two electorates were abolished to address voter malapportionment) and gaining a seat on the PR list from the dissolved Japan Restoration Party (JRP).

The JRP, which won 2 seats with 21.3% of the vote at the 2012 general election,[1] had split in May 2014, with former members subsequently forming the Japan Innovation Party and Party for Future Generations. Of the two JRP members previously elected from the Shikoku PR list, Fumiki Sakurauchi joined the Party for Future Generations and contested the PR block in 2014, while Arata Nishioka contested the Ehime 2nd district as an independent; both candidates lost.

Former Ehime Prefectural Assembly member Hiroyuki Yokoyama[3] was able to gain a seat for the Japan Innovation Party, while the Democratic Party of Japan (DPJ) and Komeito representatives were able to retain their seats.[2]

Elected candidates
Party Representative Party
rank		 Term #
LDP Teru Fukui 1 6th
DPJ Junya Ogawa 1 4th
LDP Mamoru Fukuyama 2 2nd
Komeito Noritoshi Ishida 1 7th
Innovation Hiroyuki Yokoyama 1 1st
LDP Takakazu Seto 3 2nd


Japanese general election, 2014
House of Representatives
<< 2012 —
Enrolled voters 3,259,284[4]
Votes cast 1,619,862[4] Turnout 49.70[5] -8.29[5]
Informal votes 49834 Informal 3.08
Summary of votes by party
Party Seats Gains Losses Net
gain/loss		 Seats % Votes % Votes +/-
  Liberal Democratic 3 Increase 1 Steady Increase 1 50.0 34.9 547,185 Increase 4.2
  Democratic 1 Steady Steady Steady 16.67 20.8 326,803 Increase 4.8
  Kōmeitō 1 Steady Steady Steady 16.67 15.8 247,776 Increase 0.8
  Innovation 1 Increase 1 Steady Increase 1 16.67 12.8 200,882 Increase 12.8
  Communist 0 Steady Steady Steady 0.0 10.1 158,848 Increase 4.3
  Future Generations 0 Steady Decrease 1 Steady 0.0 2.8 44,515 Increase 2.8
  Social Democratic 0 Steady Steady Steady 0.0 2.1 33,257 Decrease 0.2
  Happiness Realization 0 Steady Steady Steady 0.00 0.7 10,762 Increase 0.3
Total 6 Turnout 1,570,028 -8.29%

2012 general election

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Main article: Shikoku proportional representation block election, 2012

The ruling DPJ lost two of the three seats held in the district, as their vote was reduced to 16.0%, down from 43.2% in the 2009 election. This matched the heavy losses the party suffered nationwide as the LDP led by Shinzo Abe returned to power. The newly-formed Japan Restoration Party gained the two seats lost by the DPJ.[1] In the 13 single-member electorates, the LDP gained 4 seats, with Yuichiro Tamaki being the only DPJ member to retain his seat in the Kagawa 2nd district.[6]

Elected candidates
Party Representative Party
rank		 Term #
LDP Takakazu Seto 1 1st
Restoration Fumiki Sakurauchi 1 1st
DPJ Junya Ogawa 1 3rd
LDP Yasuji Izuhara 14 2nd
Komeito Noritoshi Ishida 1 6th
Restoration Arata Nishioka 1 1st

Japanese general election, 2012
House of Representatives
<< 2009 — 2014 >>
Enrolled voters 3,291,313[7]
Votes cast 1,908,601[7] Turnout 49.70[8]
Informal votes 58,365 Informal 3.06
Summary of votes by party
Party Seats Gains Losses Net
gain/loss		 Seats % Votes % Votes +/-
  Liberal Democratic 2 Steady Steady Steady 33.33 30.7 567,193 Decrease 1.3
  Restoration 2 Increase 2 Steady Increase 2 33.33 21.3 394,393 Increase 21.3
  Democratic 1 Steady Decrease 2 Decrease 2 16.67 16.0 296,914 Decrease 27.2
  Kōmeitō 1 Steady Steady Steady 16.67 15.0 276,907 Increase 2.0
  Communist 0 Steady Steady Steady 0.0 5.8 106,976 Decrease 0.9
  Your 0 Steady Steady Steady 0.0 5.0 93,090 Increase 5.0
  Tomorrow 0 Steady Steady Steady 0.0 3.4 63,830 Increase 3.4
  Social Democratic 0 Steady Steady Steady 0.0 2.3 42,762 Decrease 1.9
  Happiness Realization 0 Steady Steady Steady 0.00 0.4 8,171 Increase 0.9
Total 6 Turnout 1,908,601

2009 general election

Shikoku block results in the 2009 general election[9][10]
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

  1. ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Ministry of Internal Affairs and Communications: Results of the 2009 general election
  10. ↑ Yomiuri Shimbun: Election feature 2009


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