该文介绍了货币政策的动态不一致性及具有代表性的理论模型 ,即 Barro-Gordon的预期菲利普斯曲线模型 ;然后简单分析了几种防范货币政策动态不一致性的理论模型和 Walsh的委托代理模型 ,并在此基础上着重分析了 Svensson提出的通货膨胀目标制??一种防范动态不一致性的典型制度安排 ,而这种制度安排吸取了两种货币政策规范的优点 ,在许多国家的实践中被证明是成功的“,”This paper introduces in detail the time-inconsistency problem of monetary policy focusing on Barro-Gordon model based on the Philipscurve with expectation, then briefs the reputational equilibrium, Rogoff's conservative central banker model and Walsh's delegation model. The paper also analyses the inflation targeting, a rule-like or constrained discretion strategy of monetary policy.