中文摘要：

公共产品伤害事件是影响公共产品正常使用且对社会公众正常生产和生活具有一定危害的突发事件,其直接影响公众对公共服务的认可度。本文基于IAD延伸模型,以兰州市＂4·11＂自来水苯含量超标事件为例,运用二元Logistic回归分析方法,探究公共产品伤害事件后影响公众对公共服务认可度的主要因素及机理,并就如何恢复公共服务认可度提出建议,以期为更好解决公共产品伤害危机提供参考依据。

英文摘要：

Public product-harm event is the emergence which has an impact on the normal use of public products and the normal production and life of the public. It affects the public service recognition directly.This paper based on the IAD extension model,took ＂4 ·11 ＂ water benzene exceed the standard event in Lanzhou as an example,and used two Logistic regression analysis method,explored the main factors affecting public recognition of public services and the impact mechanism under the public product-harm event, and made recommendations on how to restore public service recognition,in order to provide a theoretical basis for better solving the public product- harm crisis.