中文摘要：

以信息非对称理论为基础，并结合经济主体的净财富等影响因素，金融加速器效应理论得以产生，并在发展过程中衍生出多种机制和模型。在传统金融加速器理论的基础上，近年来的研究在银行体系的特殊属性造成金融加速器的变异、货币政策嵌入金融加速器效应的机制、杠杆率对金融加速器的冲击等方面取得较大进展。但是，金融加速器效应实证分析面临的困惑、金融加速器中的“减速器”、经济主体内部的信息非对称等问题，对金融加速器理论形成新的冲击，需要进行更深层坎和覃今而的研究.

英文摘要：

Based on the theory of information asymmetry, and combined with the influencing factors such as net wealth, the theory of financial accelerator （FA） is developed, which results in quite a few new mech- anisms and models in the process of its development. The new development of researches in recent years includes the following aspects ： the special attribute of bank system leading to changes of FA, the leverage ratio having some shocks on FA, and the influence of monetary policy on FA. However, the theory of FA is facing some challenges, such as the internal information asymmetry of institutions, decelerating factors in financial accelerator, and so on.