求翻译：摘要:近年来,农民工“退保潮”一直在拷问着我国的养老保险制度:这么一个有着美好愿望的制度设计为何不能受到农民工朋友的青睐,为何成为公共政策失效的案例?本文从公平的角度出发,通过分析我国养老保险政策及各地方相关规定,揭示了当前我国养老保险制度运行过程中的困境根源于养老保险制度设计时公平的先天不足,提出养老保险制度的改革应更加注重公平的价值取向,在制度设计时保证参与人享有同等的参与机会、参与标准。只有首先解决了公平问题,才能逐步实现养老保险的效率,达到公平与效率的和谐与统一。是什么意思？

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Abstract: In recent years, the peasant laborer “drew back guarantees the tide” continuously to interrogate and torture our country's old-age insurance system: Why such does have the happy desire system to design cannot receive the peasant laborer friend's favor, why becomes the case which the commun

Summary: in recent years, farmers workers "back insurance tide" has been in torture with in China of endowment insurance system: so a has better wishes of system design why cannot was farmers workers friends of favored, why became public policy failure of case? this article from fair of angle starti