Social identity, rationality, creativity
本研究基于希腊社会（2019-2020年）的调查数据，运用社会身份理论分析理性、非理性和损失厌恶个体与创造力的关系，发现理性个体更倾向于具有创造性人格，且受生活改善目标驱动。
Purpose This study examines the relationship between rationality and creativity by means of social identity theory for the Greek society (2019–2020). Design/methodology/approach The outline of the social identity was given through self-categorization via a distributed questionnaire. The types of behavior (rational, nonrational and loss-averse) were determined by using questions based on the Allais paradox. Principal components analysis (PCA) is used to extract the causal relationships. Findings The study findings demonstrate that rational individuals are more prompt to creative personality than nonrational individuals. Rational individuals are motivated to pursue creativity through life-improvement goals. Loss-averse individuals are driven through the contradictive incentive of adventure-seeking behavior without, however, being willing to easily give up their established assets. Originality/value This article contributes by explaining creativity among rational, nonrational and loss-averse individuals as a product of social identity theory. This contributes to the literature, by proposing that the application of social theories in economics could constitute a different foundation for economics. This refers to the notion of the social microfoundations of the political economy and macroeconomics.