This report analyses the approaches of the previous five B20 presidencies to anti-corruption Collective Action. It captures lessons learned and provides recommendations for future B20/G20 cycles. It is primarily intended for upcoming B20/G20 presidencies, B20 Integrity & Compliance Task Force members and organisations engaging with the B20/G20.
You may share or republish this report under a Creative Commons CC BY-NC-ND 4.0 licence.
Around the world, businesses, civil society and governments are working together in initiatives to address corruption risks that no single actor can resolve on their own.
The Basel Institute on Governance offers a four-day training course covering the fundamentals of crypto, financial crime and anti-money laundering (AML) compliance.
Delivered virtually over four interactive three-hour sessions, the course equips practitioners from law enforcement, financial and business sectors to prevent, detect and investigate the use of crypto for illicit activities.
The Basel Institute on Governance offers a four-day training course covering the fundamentals of crypto, financial crime and anti-money laundering (AML) compliance.
Delivered virtually over four interactive three-hour sessions, the course equips practitioners from law enforcement, financial and business sectors to prevent, detect and investigate the use of crypto for illicit activities.
A joint blog by Vanessa Hans, Director, Private Sector, Basel Institute on Governance, and Elodie Beth, Senior Manager, Anti-corruption, Global Relations, Directorate for Financial and Enterprise Affairs, Organisation for Economic Co-operation and Development (OECD). The post is also published on the OECD website.
Stories, evidence and inspiration from the Basel Institute on Governance
At its core, Collective Action is a simple yet powerful concept: tackling corruption challenges together, rather than alone. Over the past two decades, anti-corruption Collective Action has grown from a niche idea to a recognised approach embedded in international standards, national strategies and corporate practices.
In these times of geopolitical instability and changing government priorities, business integrity risks being sidelined – just when it’s needed most.
Congratulations to the winners of the 2025 Anti-Corruption Collective Action Awards, presented by the Basel Institute on Governance with the support of the Siemens Integrity Initiative.
The awards were announced on 4 June 2025 in a video on social media from Elizabeth Andersen, the Basel Institute’s Executive Director.
In the last decade, companies around the globe have significantly invested in the development of anti-corruption compliance programmes. Assessing the effectiveness of these programmes has proven challenging and requires that companies go beyond a box-checking approach, set clear objectives, measure progress and impact and foster a culture of integrity.
A joint blog by Naomi Roht-Arriaza, Distinguished Professor of Law (emerita), University of California Law, and Lucie Binder, Senior Specialist, Governance and Integrity, Basel Institute on Governance.
Who are the real victims of corruption?
Traditionally, the answer has been “the state.” This stems from the fact that corruption typically involves the misuse of public office and the theft or diversion of public funds. In this legal framework, the state prosecutes the crime, claims the damage and receives any recovered assets.