通货膨胀与声誉

Inflation and Reputation

American Economic Review · 1985
被引 29
人大 A+FT50ABS 4*

中文导读

用重复博弈模型分析政府声誉如何解决货币政策的时间不一致问题,说明即使价格完全灵活,反通胀也可能导致衰退。

Abstract

In many macroeconomic models with rational expectations, optimal policy is time inconsistent, and therefore announced policy may not be credible. This paper models the government's credibility explicitly, using Kreps and Wilson's analysis. Time-consistent optimal government policy emerges as a sequential equilibrium in a repeated game. This policy is at least as good as the inconsistent 'optimal' policy, and dominates the consistent policy when reputational effects are ignored. Thus, the analysis resolves the problem of specifying a credible optimal policy in such models. The results show why attempts to disinflate may lead to recession, even with perfectly flexible prices.

通货膨胀声誉时间不一致性可信政策