What do we know about joint audit?

The aim of this review is to identify, consider and evaluate the existing evidence on joint audit to inform future policy making, highlight any deficiencies in the existing literature, identify opportunities for further research and make recommendations for policy makers. The review covers research from the major international markets and jurisdictions with experience of joint audit. Issues considered include the impact, if any, of joint audit on: audit quality, independence, audit costs and audit market concentration.