People working for people

Some of the most qualified and experienced professionals focused on promoting the Public Interest

The PIOB is an international organization comprising ten members and a secretary general, who coordinates a Secretariat with a staff of five, headquartered in Madrid.

The PIOB Board meet four times a year at the end of each quarter.

Three of the meetings are usually held in Madrid, and one is held abroad, alternating locations to achieve wider geographic presence and interaction with the regional auditing and regulatory community.

PIOB Staff

claudia deodati

Claudia Deodati

Director of oversight

Heather Ericksson

Heather Ericksson


rocio goudie

Rocio Goudie


Renzo Lari

Renzo Lari


Nerea lastras

Nerea Lastras


Former PIOB chairs and members

PIOB Chair

Stravros Thomadakis
2005 – 2011


Eddy Wymeersch
Chairman 2011 – 2020

PIOB Members

David A. Brown, Q.C
Member 2005-2011


Chandrashekhar Bhaskar Bhave
Member 2011 – 2017


Antoine Bracchi
Member 2005 – 2011


Kevin Dancey
Member 2017 – 2017


Jane Diplock
Member 2012 – 2021


Michael Holm
Member 2014 – 2018


Chuck Horstmann

Member 2014 – 2016


Prof. Toshiharu Kitamura
Member 2007 – 2014


The Hon. Aulana L. Peters
Member 2005 – 2012


Chuck MacDonough
Member 2011 – 2014

* (EU observer to the PIOB from 2005-2007)

PIOB Members

Prof. Kai-Uwe Marten
Member 2008* – 2014


Sylvie Mathérat
Member 2008 – 2013


Jules Muis
Member 2014 – 2020


Kosuke Nakahira
Member 2005 – 2007+


Sir Bryan Nicholson
Member 2008* – 2013


Maria Helena Pettersson
Member 2014 – 2020


Aileen Pierce
Member 2015 – 2021


Arnold Schilder Schilder
Member 2005 – 2008


Nicholaas van der Ende
Member 2013 – 2015


Karel Van Hulle
Member 2014 – 2021


Robert Ward
Member 2011 – 2014

PIOB Staff

Donna Maria Bovolaneas Secretary General 2005 – 2009


Susana Novoa Director of Oversight 2006 – 2019

Legal structure

Legally, the PIOB is a Technical Committee of the PIOB Foundation. The PIOB Foundation is the independent legal entity housing the PIOB. It is accountable to the Spanish foundations regulatory body.


All PIOB members belong to the Technical Committee of this foundation, which is the body entrusted to carry out the oversight activities of the foundation´s mandate. The Chair and the Secretary General of the PIOB are also the Chair and Secretary General of the foundation, governed by a set of By Laws.


The PIOB Foundation, governed by a board of trustees, discharges its Public Interest mandate, employs PIOB staff, owns its assets, and is accountable for the funds and means that support the PIOB’s activities.

Linda de Beer

Ms. de Beer is a chartered accountant (SA), holds a master’s degree in taxation and is a professor in practice at the University of Johannesburg. She is a chartered director (SA), and serves as an independent non-executive director on a number of South African listed company boards. In addition, she has a long professional history of being involved in the setting, monitoring and oversight of reporting standards, corporate governance principles and related regulation.


Ms. de Beer was Chair of the International Auditing and Assurance Standards Board’s Consultative Advisory Group (CAG) from 2010 – 2015. During her tenure, she also served on the CAG of the International Ethics Standards Board for Accountants. Currently, she is focused on her existing corporate board appointments.


Ten years’ experience in serving as an independent non-executive director on listed company boards, with significant experience in chairing audit committees. She is, and has also in the past, chaired/served on other board committees including risk-, nomination-, remuneration-, investment- and IT committees. She has been the deputy chair of a board and the lead independent director of another. The industries where she is, and has been, serving include banking, insurance, property, mining, agriculture and industrial.


Has served as a non-executive director, both in times of prosperity and difficulty, to steer companies in a responsible and profitable manner. Her experience at a board level includes merger and acquisition activities, business turnaround and restructuring (including debt restructuring and equity raising), appointment and removal of executives and other strategic and governance matters that directors take responsibility for.


Until recently advised numerous corporates, both in South Africa and Namibia, on enhancing their corporate governance, dealing with difficulties at a board and shareholder level and training directors and executives on important matters such as finance, reporting and corporate governance best practice. She has also been invited to speak on these topics at a number of international conferences, most recently in Denmark and Italy.


Experience in mediation of matters between parties and has provided expert witness reports on various aspects relating to corporate governance, financial reporting and auditing standards as well as related legislation.


Is an Honorary (Professor in Practice, on a part time basis) at the University of Johannesburg.


Launched a book, in 2018, co-authorised with Mervyn King, on the audit profession, entitled The Auditor: Quo Vadis?

Gonzalo Ramos

Secretary General of the PIOB (Since 2009)

Former Chair of the International Monetary Fund External Audit Committee



Executive Director for Spain and Mexico European Bank for Reconstruction and Development

Main responsibilities: to contribute to the EBRD corporate mission as a member of the Board of the Bank, and to represent the interests of Spain and Mexico in its operations, including working with bankers and companies to develop projects and partnerships.


Chairman of the EBRD Early Transition Countries Fund (2008)

This Fund was established in 2005 by a number of European donor governments including Spain. It supports EBRD projects in the most challenging countries of operations. Its governance is at the forefront of public international finance.


Chairman of the Financial and Operations Committee (FOPC) (2005-2007)

FOPC reviews and oversees all financial and operational policies of the Bank, monitors the Bank’s Treasury operations, and reviews the liquidity policy and borrowing programme. Additionally, it oversees transparency and accountability of the Bank’s operations.


Vice-chairman of Audit Committee (2005)


Director General for International Finance. Ministry of Economy and Finance (2000-2004)

Appointed by Rodrigo Rato, then Vice-president for Economic Affairs of the Spanish Government, to head international financial policy in the Ministry of Finance and to create a new Directorate General.

Main responsibilities:

Build a new team to develop an integrated and coherent international financial policy for the Ministry, specifically over the following issues:

  • International Financial Stability. International Monetary Fund.
  • World Bank and Regional and Sub regional Development Banks: EBRD, ADB, AfDB, IDB, and others.
  • All other European international financial institutions: EIB, BDCE.
  • Active External Debt Management. Paris Club negotiations. Development of debt swap processes.
  • EU External Development Fund, Financial policy.

Member of the Board of Trasmediterránea, S.A.

Member of the Board of Autoestradas de Galicia

Member of the Board of the European Council Development Bank


Senior Advisor in the General Directorate of the Treasury and Financial policy, Ministry of Economy (1999-2000)

Main responsibility was to advise Mr Rato on ECOFIN and IMF matters.

IMF Residential Course on Financial Programming.


Trade Commissioner of Spain in Malaysia, Brunei and Pakistan, Head of the Economic and Commercial Offices of Spain in these countries (1994-1999)

Assistant Permanent Delegate from Spain at the International Natural Rubber Organization.


Deputy Director General for Oil, Gas and Petrochemistry. General Directorate for Energy. Ministry of Industry (1990-1994)

Member of the Board of ENAGAS, S.A.

Member of the Board of Repsol Petroleos, S.A.

Main responsibilities:

  • Regulation of the process of liberalisation of the State monopoly in the oil sector in Spain.
  • Design and regulation of pricing systems for oil and gas products.
  • Regulation and development of the gas system, including infrastructures.


Advisor for External Trade in Energy Products and Special Operations (1989-90)

General Direction of External Trade, Secretary of State of Trade, Ministry of Economy and Treasury.



1988: Member of the Corps of Public Economists (Cuerpo Superior de Técnicos Comerciales y Economistas del Estado), Ministry of Economy, Spain.

1984: M. PHIL (Economics) by the University of Oxford (U.K.), St Anthony’s College

M. PHIL Thesis: “Budget Deficits and Flexible exchange rates”

Tutor in Microeconomics, Brasenose College, University of Oxford

Referee for Oxford Economic Papers, University of Oxford

Beneficiary of “Overseas Research Studentship Award” from the University of Oxford, 1982-1984.

1982: B.A. (Hons) in Economics by the University of Warwick (U.K.).

Honours Degree in Economics by the Autonomous University of Madrid (Spain).

1977: International Baccalaureate at United World College of the Atlantic, South Wales, UK.



Consultant in SBS, Group Price Waterhouse, March 1986-July 1987

Consultant in Budgetary control, Control Presupuestario S.A. Madrid, September 1985-March 1986



Spanish (mother tongue), English (bilingual), French (fluent).

Basic German and Italian.



“Budget Deficits Flexible and Exchange Rates”, Bodleian Library, Oxford 1984.

The Spanish Energy External Balance in 1989, Economic Bulletin BICE, number 2236, June 4 1990.

Energy Relations: efficient supply policy, Economic Bulletin BICE, number 2283, 10-16 June 1991.

A more efficient regulation of the oil sector in Spain. Industrial Economics, nº 292, July-August 1993.

The New International Financial Architecture, Economic Bulletin BICE, number 2686, 26 March-1 April of 2001.

Advances in the New International Financial Architecture. Journal of Economía Exterior nº 18, Autumn 2001.

The Euro and Globalization. Revista de Occidente, nº 248, January 2002.

The Argentine Crisis and The Role of The IMF. RBW Seminar, New York, May 2002.



European Study Programme-Escuela de Organización Industrial, “Macroeconomic Traits of The Spanish Economy.” October 1999 and October 2000.


Argentina. Economic situation and Spanish financial support. Round-table on Argentina and MERCOSUR. Spanish Institute of International Relationships and Foreign policy. May 2001


New Strategies of Economic Cooperation. I Ibero-American Cooperation Seminar. “External Debt Conversion Programmes.” Ortega y Gasset Foundation. May 2001.


Spain and Development Finance. Globalization and inequality: the new agenda for Financing Development. Summer Courses at the Escorial University. August 2001.


Seminar on the Argentine crisis. Reinventing Bretton Woods, New York. May 2002


Seminar on the Argentine Crisis and NAFI. May 2003. Ministry of Finance and Reinventing the Bretton Woods Committee, Madrid, May 2003.


Miembro del policy panel del XVII Simposio de Moneda y Crédito, “The future of the enlarged European Union”, Madrid, 18th-19th November 2004.

Chen Yugui

(Member since 2021)

Dr. Chen Yugui is the Chief Accountant of the China Securities Regulatory Commission (CSRC). Concurrently, he also serves as member of the Executive Board of Chinese Institute of CPAs, Vice Chairman of the National MPAcc Program Education Steering Committee sponsored by the Ministry of Education of P.R.China, Vice President of Accounting Society of China, member of the Internal Control Standards Committee of the Ministry of Finance(MOF), P. R. China, and President of Confederation of Asian and Pacific Accountants.


Dr. Chen began his career with MOF in 1986. He served as Secretary General of CICPA in 2002 and became Deputy President of CICPA at the end of 2010, and Executive Deputy President in 2018. His career covers various fields, including policy design of financial and accounting reform, accounting and auditing standards setting, regulation of the professional accountancy profession, research in public finance and accounting, international cooperation of the accountancy profession, etc.


Dr. Chen served as Chinese representative to the Intergovernmental Working Group of Experts on International Standards of Accounting and Reporting (ISAR), Deputy President of the 30th ISAR in 2013, Chinese Observer and member of the committee of countries with economies in transition of IASR from 1999 to 2001, Board Member of the International Federation of Accountants from 2003 to 2009, reappointed and from 2013 to 2015, and member of the CEO Search Committee of IFAC from 2011 to 2012. Dr. Chen was named by The Accountant as one of the 30 most influential leaders in the accountancy profession in 2011, won the ACCA Outstanding Achievement Award in 2013 and was selected as “World Accounting Most Influential 50 Person “(former 20) by the International Accounting Bulletin in 2013.

Robert Buchanan

(Member since 2020)


Public sector lawyer and consultant based in Wellington, New Zealand. He has a background in public sector legal practice, public and not-for-profit sector governance roles, experience as an independent adviser and reviewer, and international development work in the area of public sector governance and accountability.


His international work draws on his public law and governance experience gained since the 1980s. Most recently, from 2006 until 2019 he ran his own legal practice in Wellington, practicing as Robert Buchanan Public Law and Governance. Before then, He was Assistant Auditor-General, Legal at the New Zealand Office of the Auditor-General (1998 to 2006). He is also a former Director of the New Zealand Law Commission (New Zealand’s law reform agency).


This background gives him a unique combination of skills in law, governance and management, public finance, and auditing.


In July 2019, He ceased his legal practice to focus on his governance and consulting work and his role as Chairperson of the New Zealand Auditing and Assurance Standards Board.


His areas of specialty are:

  • Public sector governance and accountability, including the oversight roles of legislatures and supreme audit institutions.
  • Corporate governance and reporting, including the functions of audit and assurance and their interface with other dimensions of the governance and reporting “supply chain”.
  • Capacity development in supreme audit institutions, including in respect of their independence and legal frameworks.
  • Public sector procurement, including systems for ensuring probity in procurement processes.
  • Professional occupational regulation.
  • Law reform and legislation, including legal drafting.


He provides international consultancy services, in his own capacity and in association with consultancy organisations. He has undertaken projects for The World Bank and the Asian Development Bank in South-East Asia and the Pacific, and work in the Pacific funded by the New Zealand and Australian aid programs. He has also published and presented papers internationally on public sector finance, governance, and accountability.

Janine van Diggelen

(Member since 2021)

Janine van Diggelen is a Supervisory Board Member, lecturer and a boardroom and management consultant on strategy, change management, policy, quality and risk management, compliance and culture & behaviour. She serves on the Supervisory Board and Audit Committee of Meander Medical Center and lectures on the Post-Master Accountancy at Nyenrode Business University and Tilburg University, respectively. Additionally, she is examiner of the final oral exam of the Assurance Practical Training Programme and is leading a working group in relation to the future of the accountancy sector in the Netherlands. She is also a member of an initiative to enhance boardroom empowerment for women and is a sought-after keynote speaker and has published various articles.


Previously, Ms. Van Diggelen completed a 4-year tenure as Chair and Vice Chair of the International Forum of Independent Audit Regulators (IFIAR), representing over 50 countries. She has contributed substantially to stimulating cooperation within IFIAR to serve the public interest and to enhance investor protection. Her dedication and accomplishments in promoting high quality audits have underscored the necessity of enhancing audit quality globally. Under her leadership, she opened IFIAR’s permanent office in Tokyo in April 2017. Furthermore, she has implemented significant changes in IFIAR’s governance structure.


Previously, she was Head International Auditing & Accounting, Policies & Standard Setting at the Netherlands Authority for the Financial Markets (AFM) and heading the division responsible for audit and financial reporting oversight. Prior to her appointment at the AFM, she had been working for 17 years with EY.

Ms van Diggelen holds a Master of Science in Information Management and is a Dutch Registered Accountant.

Karen Stothers

(Member since 2017)


Karen Stothers is Senior Director of the Office of the Superintendent of Financial Institutions Canada (OSFI), the independent Canadian federal government agency that regulates and supervises financial institutions and pension plans to determine whether they are in sound financial condition and meeting their requirements.


She began her career in the auditing profession in Canada where she became a Chartered Professional Accountant of Canada and then moved on to financial reporting, accounting policy and risk management for both Canadian and international purposes in US and Canadian Banks. 


In her current position with OSFI she is Head of a centre of expertise in accounting and auditing standards and processes for national and international accounting and auditing policy practices. She is the authoritative voice of OSFI with national and international liaison parties, e.g., standard-setters, regulators, auditors to ensure ongoing assessment of key national and international accounting and auditing standards and trends in order to influence their development and implementation through a variety of means. 


Karen is responsible for OSFI’s public interest role in the Canadian oversight of the setting of audit and assurance standards as the OSFI observer on the Canadian Audit and Assurance Standards Oversight Council. She is also a member of the Public Interest Oversight Board as the Basel Committee on Banking Supervision nominee. She also oversees OSFI’s positions with the Basel Committee on Banking Supervision’s Accounting Experts Group and the International Association of Insurance Supervisors’ Accounting and Auditing Working Group.


She has a Bachelor of Commerce and Finance from the University of Toronto.

Michael Hafeman

(Member since 2020)

Michael Hafeman is an actuary and independent international consultant based in Canada. Since 2003, he has provided policy and implementation assistance to national, regional, and international organizations on issues related to the insurance and pensions sectors.


He has worked in more that 70 countries, building capacity on financial regulation and supervision and contributing to the sound development and operation of financial services by advising governments on a range of other issues. He serves as a member of the International Affairs Council and the Public Affairs Council of the Canadian Institute of Actuaries. He is also a member and former chair of the Toronto Centre’s Insurance and Pensions Advisory Board.


He previously worked in the Canadian and U.S. financial sectors, including serving as Assistant Superintendent at the Office of the Superintendent of Financial Institutions Canada, managing partner of the Toronto pension practice of a major consulting firm, and president of a life insurance company. He has served on Canada’s Auditing and Assurance Oversight Committee and as a member of the PIOB (from 2005 to 2014).
He received a Bachelor of Arts degree in Mathematics and Economics from the University of Minnesota – Duluth (UMD). He is a Fellow of the Society of Actuaries, a Fellow of the Canadian Institute of Actuaries, and a Member of the American Academy of Actuaries.


He has been recognized as a Distinguished Fellow by the International Association of Insurance Supervisors and as a member of the Swenson Academy of Science and Engineering of UMD.

Shigeo Kashiwagi

(Member since 2017)


Mr. Shigeo Kashiwagi has been teaching economic policy making and international finance at the Graduate School of Business and Commerce of Keio University, as a full-time professor between June 2007 and March 2016 and as a guest professor since April 2016. He has been teaching both undergraduate and graduate courses in English, on issues such as policy implications of economic globalization and regional integration, international finance, fiscal policies, and the Japanese economy.


Mr. Kashiwagi has written extensively on economic policy issues, international finance issues and the Japanese economy. He has also attended conferences and gave lectures and speeches at numerous fora in various countries.


Prior to joining academia, Mr. Kashiwagi was with the Japanese Ministry of Finance for a long time. He held various policy making positions in the areas of international finance, domestic financial sector issues, and macroeconomic policies. He was Director of International Organizations Division of the International Finance Bureau during 1993-94, Director of the Securities Market Division of the Securities Bureau during 1996-98, Director of the Coordination Division, Financial Systems Planning Bureau during 1998-1999, Director-General of the Tokai Regional Finance Bureau during 1999-2000, and Executive Vice-President of the Policy Research Institute during 2003-04.


During his 34-year career at the Japanese Ministry of Finance, Mr. Kashiwagi also acquired broad knowledge and wide experience with international financial institutions, in particular the International Monetary Fund (IMF) and the Asian Development Bank (ADB). He was seconded to the IMF on three occasions and spent 10 years in total in Washington DC; first, as an economist at the Asian Department during 1981-85, secondly, as a Senior Advisor at the Policy Development and Review Department during 2000-03, and thirdly as an Executive Director for Japan during 2004-07. He was also an Executive Director for Japan at the ADB during 1994-96.


Mr. Kashiwagi is also concurrently Senior Fellow, Policy Research Institute, Japanese Ministry of Finance. In this capacity, between July 2008 and November 2015, he served as non-resident First Vice-Rector of the Banking and Finance Academy of the Republic of Uzbekistan to contribute to the human resource development of this country, in the area of banking and finance.


In the corporate world, Mr. Kashiwagi has had considerable experience of sitting on the Board of a major financial institution and acquired hands-on experience of corporate governance matters. He was an outside-member of the Audit and Supervisory Board of the Tokai-Tokyo Financial Holdings Company between 2009 and 2016, and has been a non-executive Board member and a member of the Audit and Supervisory Committee of the same company since June 2016.


Mr. Kashiwagi was also a member of the Advisory Board of the Tokyo Metropolitan Government on its management and effective utilization of public funds, between 2010 and September 2016.


Mr. Shigeo Kashiwagi was born in 1950 in Japan. He received his BA in Economics in 1973 from Keio University and received his Master’s degree in Public Affairs in 1977 from Princeton University.

Begoña Giner

(Member since 2021)

Begoña Giner is currently Full Professor of Accounting and Finance at the University of Valencia. She holds a Master of Science in Accounting and Finance by the London School of Economics, and a PhD in Business Studies and a Degree in Political, Economics and Business Studies, both with Extraordinary Award, by the University of Valencia.


She has occupied visiting positions in several universities, Rutgers and North Carolina at Chapel Hill (USA), Amsterdam (The Netherlands), Rosario (Argentina), Strathclyde and Glasgow (UK). She is a chartered accountant and member of the Spanish Institute of Chartered Accountants, as well as member of the European Accounting Association (EAA) and the American Accounting Association (AAA).

She has been member of the Technical Expert Group of the European Financial Reporting Advisory Group (EFRAG TEG) and of the International Financial Reporting Standards (IFRS) Council, and President of the European Accounting Association (EAA). Now she is the Chair of the EAA Stakeholder Reporting Committee. Since the beginning of September 2020, she is a member of the Project Task Force on Preparatory Work for the Elaboration of possible EU Non-financial Reporting Standards established by EFRAG. She is also Board member of the Spanish Association of Accounting and Business (AECA). In the University of Valencia, she has served as Vice-dean of the Faculty of Economics, Head of the Accounting Department, and Coordinator of the Doctoral Program on Accounting and Corporate Finance.


She has published numerous articles in leading accounting and business journals, including Abacus, Accounting Auditing and Accountability Journal, Accounting and Business Research, Australian Accounting Review, Accounting in Europe, Business History, European Accounting Review, Journal of Business Ethics, Applied Economics, Journals of Business Finance and Accounting, Journal of Cleaner ProductionJournal of International Financial Management, Revista de Contabilidad – Spanish Accounting Review), Revista Española de Financiación y Contabilidad, Social and Environmental Accountability JournalShe has participated as faculty member in two major accounting regulation research projects financed by the European Commission.