Psychologists have shown that diversity promotes tolerance towards different groups if it catches people by surprise.
In a paper published by PLoS ONE, Dr Milica Vasiljevic of the University of Kent and Professor Richard Crisp of the University of Sheffield explain how they conducted a series of experiments in which participants (British undergraduates) thought of surprising combinations of social categories such as overweight model, rich student, female firefighter or male midwife.
Read the press release and the article.