John Barry, Male Psychology Network
The phenomenon of ingroup favouritism and outgroup bias is a cornerstone of social psychology. The strength of such biases vary by group e.g. it is well-established that higher-status groups invoke more ingroup bias (e.g. Nosek et al, 2002). Men in general (historically and cross-culturally) have higher status than women in the public realm (politics, finance etc), so one would expect that male identity invokes a high level of ingroup bias. However research shows that – uniquely in social identity theory – male identity, unlike female identity, invokes no significant ingroup bias (e.g. Richeson & Ambady, 2001).