Econometrics and Statistics Associate editor 2015/12- present
Computational Statistics Associate editor 2022/2- 2023/12
Statistics and Probability Letters : Associate editor 2003/9 - 2023/12
Applied Stochastic Models in Business and Industry Associate editor 2022/4- 2023/3
Computational Statistics & Data Analysis Associate editor 2011/10- 2016/2
Journal of the Japan Statistical Society (Japanese journal) Associate Editor 2010/10 – 2015/9
Guest associate editor for CSDA Annals of Computational and Financial Econometrics (2011), Computational Statistics & Data Analysis
Journal of the Japan Statistical Society (Japanese journal) Editor 2006/10 - 2008/9
Guest editor for Special issue on statistical and computational methods in finance (2008), Computational Statistics & Data Analysis
Journal of the Japan statistical Society (English journal) Associate Editor 2002/10-2004/9
International Society for Bayesian Analysis, Zellner Medal 2024
Japan Statistical Society Award 2018
Japan Statistical Society Research Achievement Award (with Toshiaki Watanabe) 2012
Co-organizer for Webinar of Bayesian Econometrics 2023, 13 January 2023.
Program Committee for the 6th Eastern Asia Meeting on Bayesian Statistics (Hybrid), 8-9 July 2022, Feng Chia University, Taiwan.
Co-organizer for Webinar of Bayesian Econometrics 2021, 26-27 November 2021.
Program Committee for the 5th Eastern Asia Meeting on Bayesian Statistics (Hybrid), 15-16, November 2021, Atlantic City, New Jersey (U.S.A.) and Kunming, Yunnan (China).
Co-organizer for Webinar of Bayesian Econometrics 2020, 28 November 2020.
Session Organizer for 13th International Conference on Computational and Financial Econometrics (CFE2019), 14-16 December 2019, Senate House, University of London & LSE, UK
Local Organizing Committee for the 4th Eastern Asia Meeting on Bayesian Statistics, 13-14 July 2019, Kobe University, Japan
Scientific Program Committee for 12th International Conference on Computational and Financial Econometrics (CFE2018), 14-16 December 2018, University of Pisa, Italy
Co-organizer for Bayesian workshop, November 23, 2018, Umeda campus, Kwansei Gakuin University, Japan.
Session Organizer for CSA-KSS-JSS international session, Japanese Joint Statistical Meeting, 9-13 September 2018, Chuo University, Tokyo, Japan.
Session Organizer for Wakimoto session (CIPS-KSS-JSS session for young scholars), Japanese Joint Statistical Meeting, 9-13 September 2018, Chuo University, Tokyo, Japan.
Session Organizer for the 3rd Eastern Asia Meeting on Bayesian Statistics, 12-13 July 2018, Seoul National University, Korea
Session Organizer for 11th International Conference on Computational and Financial Econometrics (CFE2017), 16-18 December 2017, Senate House, University of London & LSE, UK
Scientific Program Committee for the 2nd Eastern Asia Meeting on Bayesian Statistics, 6-7 July 2017, Northeast Normal University, Changchun, Jilin, China
Co-chair for The 1st International Conference on Econometrics and Statistics (EcoSta 2017), 15-17 June 2017, Hong Kong University of Science and Technology, Hong Kong
Scientific Program Committee for the First Eastern Asia Meeting on Bayesian Statistics, December 18, 2016, Shanghai Jiao Tong University, Shanghai, China.
Scientific Program Committee for 10th International Conference on Computational and Financial Econometrics (CFE2016), 9-11 December 2016, the Higher Technical School of Engineering, University of Seville, Spain
Scientific Program Committee for 9th International Conference on Computational and Financial Econometrics (CFE2015), 12-14 December 2015, Senate House, University of London, UK
Advisory Board for 9th Conference of the Asian Regional Section of the IASC (IASC-ARS 2015), 17-19 December 2015, National University of Singapore, Singapore.
Scientific Program Committee for 8th International Conference on Computational and Financial Econometrics (CFE2014), 6-8 December 2014, University of Pisa, Italy
Chair of Executive Committee for 2014 Japanese Joint Statistical Meeting, 13-16 September 2014, University of Tokyo, Japan.
Scientific Program Committee for 7th International Conference on Computational and Financial Econometrics (CFE2013), 13-16 December 2013, Senate House, University of London & LSE, UK
Co-chair for 6th International Conference on Computational and Financial Econometrics (CFE2012), 1-3 December 2012, Ovideo, Spain
Organizing Committee for 2012 ISBA (International Society for Bayesian Analysis) World Meeting, 25-29 June 2012, Kyoto Terrsa, Kyoto, Japan.
Co-chair for International Workshop on Statistical Computing in Quantitative Finance and Biostatistics: A Satellite Meeting for the 7th the Asia Regional Section of the International Association for Statistical Computing Conference, 20-21 December 2011, Feng Chia University Taichung, Taiwan.
Scientific Program Committee for 5th International Conference on Computational and Financial Econometrics (CFE'11), 17-19 December 2011, Senate House, University of London & LSE, UK
Co-organizer for Computational methods for Bayesian analysis with applications to finance and economics, November 19-20, 2011, Karato Satellite campus, Shimonoseki City University, Japan.
Program Committee for Annual Meetings of Japanese Economics Association 2011
Scientific Program Committee for 4th International Conference on Computational and Financial Econometrics (CFE'10), 10-12 December 2010, Senate House, University of London & LSE, UK.
Organizer for International Workshop on Bayesian Econometrics and Statistics, 4-5 February 2010, University of Tokyo, Japan.
Co-chair for 3rd International Conference on Computational and Financial Econometrics (CFE'09), 29-31 October 2009, Grand Resort Hotel, Limassol, Cyprus.
Scientific Program Committee for 4th World Conference of the IASC and 6th Conference of the Asian Regional Section of the IASC on Computational Statistics & Data Analysis, 5-8 December 2008, Yokohama, Japan.
Scientific Program Committee for 2nd International Workshop on Computational and Financial Econometrics (CFE'08) Computer Science Department of the University of Neuchatel, 19-21 June 2008, Neuchatel, Switzerland
Scientific Program Committee for 1st International Workshop on Computational and Financial Econometrics (CFE'07), Department of Econometrics, University of Geneva, Switzerland, 20-22 April, 2007
Program Committee for Japan Statistical Society 1999/10-2001/9
Japan Statistical Society Inspector 2023-2025
Japan Statistical Society Director-General of Board of Trustees 2021-2023
Japan Statistical Society Special Committee for Society Organization 2021-2025
Co-chair of Prize Committee, International Society for Bayesian Analysis 2021
Prize Committee, International Society for Bayesian Analysis 2020-2023
Chair of The Eastern Asia Chapter of ISBA 2019-2020
Japan Statistical Society Special Committee for Society Activities 2015-2019 (Chair:2015-2016)
Japan Statistical Society International Relations Committee 2017-2019 (Chair:2018-2019)
Treasurer of The Eastern Asia Chapter of ISBA 2016-2017
Chair of EFab Nominating Committee, International Society for Bayesian Analysis 2013
Member of Science Council of Japan 2011-2029
Board of Trustees, Japan Statistical Society 2011-2025
Nominating Committee, International Society for Bayesian Analysis 2010
Board of Directors, Japan Statistical Society 2006-2007 2017-2018
Japan Statistical Society, Japanese Economic Association，Japanese Association of Risk, Insurance and Pensions, Nippon Finance Association
The Institute of Mathematical Statistics, American Statistical Association, International Society of Bayesian Analysis, Econometric Society
Elected member of the International Statistical Institute (ISI)