Public sector audit in uncertain times

In the future, environmental disasters and resource constraints will continue to impact the public sector audit environment. Governments will be held responsible for their responses and the corresponding financial impacts, particularly rising levels of public debt. Supreme Audit Institutions (SAIs) are vital in keeping governments accountable. Yet, they also need legitimacy and they are subject to isomorphic pressures to gain this. Mimetic isomorphism explains SAIs’ structures, although they remain diverse, worldwide. Our analysis of extensive data about SAIs together with statistical measures about countries, an international survey and document analysis enables us to make projections about what isomorphic pressures will shape SAIs and enable them to deal with an uncertain future. Examining public debt and the United Nation's Sustainable Development Goals as case studies, we show how isomorphism will shape SAIs’ responses to an uncertain future.