中文摘要：

行业景气度作为企业行业环境的重要方面对企业盈余管理行为有重要影响。研究发现，企业的盈余管理行为不仅受到行业景气度高低的影响，也会受到其波动性的影响。行业景气度较高时，企业应计盈余管理程度较高；行业景气度波动性较大时，企业倾向于进行正向应计盈余管理，减少负向应计盈余管理。同时，行业景气度及其波动性对企业盈余管理的影响会产生叠加，行业景气度波动性显著增强了行业景气度与正向应计盈余管理的正相关关系。上述研究丰富了中观环境下对企业盈余管理行为影响的研究，有助于加深人们对于上市公司在不同行业景气状况下盈余管理行为的认识，也为上市公司盈余管理行为的监管提供了一定的参考。

英文摘要：

Industry climate, as an important part of industry environment, has a great influence on corporate earnings management. The paper finds that： Corporate earnings management is not only affected by the level of industry cli- mate, but also its volatility. High industry climate level results in the increase of accrual-based earnings manage- ment. On the other hand,firms in a highly volatile industry climate tend to increase upwards accrual-based earnings management and decrease downwards ones. It is said to be an addictive effect between the impact of the level and volatility of industry climate on accrual-based earnings management, but our research only support the addictive effects on upwards accrual-based earnings management. This paper contributes to the research on the effect of indus- try environment on corporate earnings management,and can help strengthen the regulation of earnings management.