伦敦的毒烟雾事件导致多人死亡，让人们意识到空气污染会对人们身体健康造成极大 的负面影响。随着人们生活水平的提高，私家车的盛行导致大量汽车尾气和工业废气的排 放，从而加剧了空气污染以及雾霾天气的频发。雾霾一度踊跃成为 2013 年的年度关键词， 并持续受到人们高度关注。随着经济的不断发展，现如今暴露在雾霾这种空气污染之中会 对人们的健康、工作效率、教育以及认知等方面都有着负面影响。 近几年来，许多将雾霾与个体行为相结合进而进行探索的相关研究，已有学者研究了 雾霾对个体的犯罪和不道德行为的影响。在此研究的基础上，进一步探讨雾霾对个体的跨 期决策行为的影响及内在的心理机制。个体在面临多种行为选择的时候，其选择并不一定 都是理性，会受到诸如心理、身体、环境等因素的影响。本研究以雾霾为研究点，以 91 名 北京市在校大学生为被试，采用实验室实验的研究方法，分为实验组和控制组，用实证性 研究来分析雾霾对个体跨期决策产生的影响，并且发现状态焦虑的中介作用机制。本研究 得出的研究结论如下： 1. 雾霾会对个体的跨期决策行为产生影响，即雾霾程度越高，个体越倾向于短期的决 策，雾霾程度越低，个体越倾向于长期的决策。 2. 状态焦虑在雾霾和跨期决策之间起到部分中介作用，即雾霾通过使个体增加状态焦 虑的程度继而使个体更加的倾向于短期的决策。

The toxic smog in London led to many deaths. People realize that air pollution has a great negative effect on people's health. As the development of economy, the emission of a large number of automobile exhaust and industrial waste gas leads to the aggravation of air pollution and the emergence of haze. In 2013, haze once became the keyword of the year and has been the focus of attention. With the continuous development of the economy, nowadays, exposure to haze has negative effects on people's health, work efficiency, education and cognition. In recent years, many researches devote to the combination studies of haze and individual behavior. Some scholars have studied the influence of haze on individual crime and unethical behavior. On the basis of the study, further discussion of the intertemporal individual decision- making behavior emerges. When individuals make various choices, their decisions are influenced by various factors, and not always rational. Studies of this paper focus on haze. The subjects are Beijing college students. The study adopts laboratory experiment. This study analyzes the influence of haze on individual intertemporal choice and find out the mediating mechanism of state anxiety. The main conclusions of this study are as followed: 1. Haze could positively predicts intertemporal choice: the more severe the haze, the more the individual tends to make short-term choice. 2. State anxiety plays a partly mediated role on the effect of haze and the intertemporal choice: haze influence the level of individuals anxiety, and lead to facts that the individual tends to make short-term choice.