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NIMBY問題の決め方の合意への無知のヴェールの有効性と限界 : 高レベル放射性廃棄物処分地選定合意形成ゲームの開発と試行

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Title: NIMBY問題の決め方の合意への無知のヴェールの有効性と限界 : 高レベル放射性廃棄物処分地選定合意形成ゲームの開発と試行
Other Titles: The effectiveness and limitations of the veil of ignorance in prior consent of procedure toward consensus building in a NIMBY issue : development and trial of “Consensus Building of High-Level Radioactive Waste Disposal Site Game”
Authors: 横山, 実紀1 Browse this author
大沼, 進2 Browse this author →KAKEN DB
Authors(alt): Yokoyama, Miki1
Ohnuma, Susumu2
Keywords: NIMBY
The veil of ignorance
Consensus building
Stepwise decision making
High-level radioactive waste
Issue Date: 30-Jan-2022
Publisher: NPO法人 日本シミュレーション&ゲーミング学会
Journal Title: シミュレーション&ゲーミング
Volume: 31
Issue: 2
Start Page: 130
End Page: 142
Publisher DOI: 10.32165/jasag.31.2_130
Abstract: 本研究は,NIMBYとしての高レベル放射性廃棄物地層処分地選定問題を取り上げ,合意形成プロセスにおける無知のヴェールの有効性を探索した.本研究は,誰もが当事者となり得るということと,自分の利害関係について不明であるという無知のヴェールの二つの要素を決め方に適用し,NIMBYの合意形成促進における有効性を検討した.ゲーム構造として,プレーヤー全員が立地地域住民となり得るとし,そのうえで利害関係を知らずに価値基準を議論する役割のプレーヤーを設けた,「高レベル放射性廃棄物処分地選定合意形成ゲーム」を開発・実施した.ゲームでは利害の代弁者である地域の首長と,利害関係を知らない無知のヴェールに覆われた住民代表のプレーヤーが順番に価値基準を議論して決定する.その結果,無知のヴェールを適用した決め方は,公正と評価されていたが必ずしも受容にはつながらなかった.合意形成プロセスに無知のヴェールを組み込むことは有効だが,立地地域を絞り込む際は別の方法を組み合わせる必要性が示唆された.
This study explored the effectiveness of the veil of ignorance in consensus building on NIMBY issues, focusing specifically on the selection of candidate geological disposal sites for high-level radioactive waste. Since NIMBY issues are notoriously difficult to reach consensus on, we examined the effectiveness of employing a ‘veil of ignorance’ during the site selection process. We refer to two elements of the veil of ignorance: the first is anyone can be a concerned party and the second is that individuals unaware of their interests discuss and make a decision. To establish this structure we designed a game, the “Consensus Building of High-Level Radioactive Waste Disposal Site Game,” in which anyone can be selected as representing a candidate site, and there are a type of player that discuss the value criteria for deciding a disposal site without knowing their interest. The game involves two types of players: “the local governors” who are aware of their regions’ interests, and “citizens” who are unaware of their residential regions. The game also includes a stepwise selection process: the local governors first engage in discussion, then the citizens decide on the relevant value criteria for site selection. Our results demonstrated that a selection process employing a veil of ignorance was evaluated as fair but did not necessarily lead to acceptance. This suggested that incorporating a ‘veil of ignorance’ into a consensus building process is effective, but that it is necessary to combine alternative methods to increase acceptance of the outcome of the site selection process.
Type: article
Appears in Collections:文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 大沼 進

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