To retain its credibility and legitimacy as the centre of global economic governance, the G20 must demonstrate continued value, leadership and effectiveness. Accountability is a critical component in demonstrating the G20's effectiveness, as implementing commitments ensures that promises made...

For the past 37 years, the annual G8 summits have generated a wide breadth of declarations and communiqués binding the leaders to hard commitments across a diverse range of global policy issues. The extent to which the G8 members comply with their annual commitments has, in recent years, become...