Work friendships can contribute to a lack of creative diversity in the office, according to new research from Rotterdam School of Management, Erasmus University.‘Relational capital and individual exploration: Unravelling the influence of goal alignment and knowledge acquisition’, a paper that examines the double-edged sword of friendships between colleagues, has revealed that friendly workplaces discourage employees from challenging ‘group think’. The researchers examined 150 respondents within large R&D departments of three Fortune Global 500 firms, gauging whether their accounts of personal friendships affected individual creativity, in information obtained from their colleagues. Tom Mom, along with co-authors Pepijn van Neerijnen, Patrick Reinmoeller and Ernst Verwaal, demonstrate that by aligning themselves, employees become less likely to innovate away from the established and accepted ‘norm’.