中文摘要：

贪婪是人性的重要特点之一，也是哲学、经济学等领域经常讨论的话题。本文首先梳理了贪婪的概念，并将问题聚焦在对于物质的贪婪上。然后总结了贪婪的特点，并提出贪婪的定义。接着阐述了情境因素如何影响个体对贪婪的态度，以及贪婪动机如何影响自利行为。贪婪决策是个体决定是否做出贪婪行为的心理过程，受到自我意识和情绪的影响。贪婪决策过程模型整合了控制性、自动化两类加工方式，阐释了自利倾向与道德自觉相互作用的机制。本文对以上内容逐次进行讨论，并提出了未来研究的方向。

英文摘要：

As one of the important attributes of human being, greed has been widely discussed in academic fields such as philosophy and economics. In the present paper, we first summarized the characteristics of greed, put forth its definition and focused on the greed for material. Then, the mechanism of how situational factors influence individual＇s attitude to greed and how the greed motivation affects individual＇s behavior were expounded. As the process of deciding whether to conduct greedy behavior, greed decision-making is influenced by self-consciousness and emotions. The Greed Decision-making Process Model （GDMPM）, integrating both controlling and automatic processes, helps interpreting the interaction of self-interest and socio-morality. Though relatively innovative, GDMPM is still to be improved. The directions for further researches were proposed ultimately.