For a period of a year in 2014 and 2015, Arno has also been a fellow at Copenhagen Business School. His primary research interests are corporate responsibility and cross-sector interaction. More specifically, his research projects have focused on corporate management of stakeholder relations with nongovernmental organizations, practices and business innovation in low-income markets, inter-organizational roles in evolving environmental networks, and the political role of corporations. His research has appeared in journals such as Business Ethics Quarterly, Business & Society, Corporate Governance, Energy Policy, Journal of Business Ethics, Journal of World Business, and Research Policy.