Since the publication of ‘Getting a Better Balance on International Arbitration Tribunals’ in Arbitration International Volume 28 Issue 4 in 2012, there has been in-creasing focus in the arbitration community on the issue of improving diversity among counsel and arbitrators alike, particularly in relation to gender diversity. In this article, Lucy Greenwood and Mark Baker update and expand upon the research which under-pinned their original article. They demonstrate that greater diversity has been shown to improve the quality of decision-making within corporations. Increasing diversity of arbitral decision-makers may result in enhanced quality of deliberations and awards. The authors consider that responsibility lies with arbitral institutions to track and infor-mation about the gender of party- and institution-appointed arbitrators in arbitrations they administer. However, ultimate responsibility for meaningful change lies with those making the appointments. They must acknowledge the value of diversity in its own right and as a factor in?uencing the quality of decision-making processes.