People's pro-environmental behavior (PEB) can reflect their concern for the environment, but it can also have selfish reasons. The present study (N = 261) addresses the relationship between communal and agentic narcissism on the one hand, and altruistic and egoistic PEB on the other. To assess participant's PEB, a general self-report questionnaire and a diary approach were employed. For the general questionnaire, linear regression models revealed a significant positive correlation between communal narcissism and egoistic PEB. For the diary data, multilevel models showed that communal narcissism was positively linked to both egoistic and altruistic PEB, whereas agentic narcissism and altruistic PEB were negatively related. We discuss possible reasons for why results of the general and multilevel diary approach differ and how leveraging narcissism could be used to enhance PEB.

人们的环保行为可以反映他们对环境的关注，但也可能有自私的原因。本研究（N = 261）一方面解决了社区自恋和代理自恋，另一方面又解决了利他主义和利己主义PEB之间的关系。为了评估参与者的PEB，采用了一般的自我报告调查表和日记方法。对于一般调查表，线性回归模型显示出社区自恋与利己主义PEB之间存在显着正相关。对于日记数据，多层次模型显示，自恋与利己性PEB均呈正相关，而代理自恋和利他性PEB呈负相关。我们讨论了为什么普通日记和多层日记方法的结果不同以及如何利用自恋来增强PEB的可能原因。