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The Evolving Role of Corporate Supervisors (Kansayaku) in Japan

  • Wilf Hall 139 MacDougal Street, Room 512 New York United States (map)

The Evolving Role of Corporate Supervisors (Kansayaku) in Japan   

Bruce Aronson, Affiliated Scholar, U.S.-Asia Law Institute, NYU School of Law
Souichirou Kozuka, Professor of Law, Gakushuin University, Tokyo

Event Description

There has been extensive debate and criticism in Japan and elsewhere about the role of corporate supervisors.   This session will address the fundamental question of the extent to which the actual role of kansayaku has been expanding from a narrow compliance function to include a broader focus on risk management and monitoring of management. 


Bruce Aronson has been a tenured professor of law at universities in the United States and Japan, and has also served as a corporate partner at a major New York law firm. Professor Aronson is currently a Research Associate, Japan Research Centre, SOAS, University of London (non-resident). He also serves as an outside director at a listed Japanese pharmaceutical company. His main area of research is comparative corporate governance with a focus on Japan.  Recent publications include Corporate Governance in Asia: A Comparative Approach (with J. Kim, Cambridge University Press, 2019)

Souichirou Kozuka (PhD, Tokyo) is Professor of Law at Gakushuin University, Tokyo. He specialises in commercial law, corporate law and maritime, air and space law and emphasises on the comparative approach. He is a contributor to Jean Jacque du Plessis, Anil Hargovan, Mirko Bagaric & Jason Harris (eds), Principles of Contemporary Corporate Governance, third edition (2015) and fourth edition (forthcoming), and is also the author of: ‘The Bifurcated World of Uniform Law: The Uniform law of “Islands” and of “The Ocean”’ in Unidroit (ed), Eppur si muove: The Age of Uniform Law – Essays in honour of Michael Joachim Bonell to Celebrate his 70th birthday, pp. 333–346 (2016, Unidroit), as well as editor and main author of Implementation of the Cape Town Convention and the Domestic Laws on Secured Transactions (2017, Springer).

Professor Kozuka is chair of the Space Law Committee of the International Bar Association (IBA) for 2016 and 2017, correspondent of UNIDROIT (the International Institute for the Unification of Private Law) and Associate Member of the International Academy of Comparative Law (IACL).

講師略歴

ブルース・アロンソン:ボストン大学卒業及びハーバード大学ロースクール修了ニューヨーク法律事務所のパートナーを経て米国のクレイトン大学ロースクールの教授。東京大学上級フルブライト研究員・客員准教授、日本銀行金融研究所研究員、早稲田大学上級フルブライト研究員などを経験。2013年~2018年一橋大学大学院国際企業戦略研究科教授。2018年よりニューヨーク大学ロー・スクールのUS-アジア法研究所の客員研究員。2017年6月よりエーザイ株式会社社外取締役。専門は、コーポレート・ガバナンスの比較研究。

小塚 荘一郎:1992年東京大学法学部卒業。専門分野は商法。博士(法学)。東京大学大学院法学政治学研究科助手、千葉大学法経学部助教授、上智大学法学部助教授、同大学法科大学院教授を歴任し、2010年4月より学習院大学法学部教授。2国内では、日本私法学会、日本海法学会等に所属。国際的には、私法統一国際協会(UNIDROIT)コレスポンデント、比較法国際アカデミー(AIDC)準会員。主著は『宇宙ビジネスのための宇宙法入門(第2版)』(佐藤雅彦氏と共編著、有斐閣、2018)、『支払決済法(第3版)』(商事法務、2018)、『AIの時代と法』(岩波新書、2019)。