中文摘要：

本论文研究具有习惯形成偏好特性的宏观经济模型，讨论一般均衡下经济增长和消费者行为，分析外部习惯和内部习惯同时存在的情况下经济的动态特征和各经济变量的相互关系。本文发现当外部习惯形成影响存在时，经济增长会对储蓄率的变动有正向作用，消费者的自身消费具有负的社会效应。

英文摘要：

We mainly analyze a general equilibrium economy with homogeneous agents who have habit formation preferences. We find that under this model both consumers＇ consumption behaviors and the convergence style of the economy have been changed. Especially when there only exists external habit formation, an increase in the growth of the economy has a positive effect on saving rate. Besides, habit formation will induce the negative external effect of consumption.