中国通货膨胀成因的实证分析

通过对可能影响我国通货膨胀的因素,包括经济增长、货币供应量、居民消费水平和工资的格兰杰因果分析和自回归分布滞后模型的拟合,可知我国通货膨胀和货币供应量、居民预期有密切关系,而和其他因素没有显著关系.     

Rules versus discretion - A disinflation case

This paper compares a strict inflation target regime to a conservative central bank regime to determine the monetary regime appropriate for a disinflation process. The analysis shows that in a two-period model, in which policymakers face given first-period inflationary expectations, a strict inflation target could be preferred to the appointment of a conservative central banker who has discretion. The result differs from that of Rogoff (1985), who assumed rational expectations and concluded that a conservative central banker is always preferable. The disadvantage of the conservative central banker derives from his tendency to accelerate disinflation relative to rate that maximizes social welfare.JEL Classification: E52, E58The authors are grateful to Alex Cukierman, Nissan Liviatan, Allan Drazen, Amit Friedman and Yoav Friedmann for their useful suggestions. We also thank the anonymous referees for helpful comments. Earlier versions of this paper were presented at the Tel Aviv University macroeconomic workshop, at the Research Department seminar, Bank of Israel, and at the Bank of Israels conference on Macroeconomic Policy, October 2002.     

银行危机与货币危机共生性关系的实证研究

1 997— 1 998年的亚洲金融风暴中 ,银行危机与货币危机的同时爆发 ,即共生性危机的发生引发国际社会与学术界对这种现象的重新思考 :这种共生性现象是否确实具有普遍性 ?从理论的角度来看 ,银行危机与货币危机之间的确存在着一定的联系 ,但到目前为止 ,很少有研究从实证的角度来证明这种联系的确存在。正是基于此 ,本文从实证的角度出发 ,旨在揭示出银行危机与货币危机之间的确存在着相互影响 ,换言之 ,共生性危机的发生是具有显著性的。具体来说 ,本文以 1 975— 2 0 0 0年期间 53个国家危机的发生情况为研究对象 ,分别运用频率分布、信号法 ,以及概率回归模型来分析两种危机的共生性 ,并得到非常一致的结论 :在新兴市场国家中 ,银行危机与货币危机之间的确存在着明显的相互关系 ,同时银行危机更趋向于作为货币危机即将发生的同步或预警指标 ,而反之则不然。     

欧元体系财政与货币政策协调性分析

欧元区集中统一的货币政策和权力分散的财政政策 ,已有 4年多的实践历程 ,实践表明财政与货币政策协调性较差 ,欧盟的机构设置与政策结构的设计的确存在缺陷 ,采取扩张性货币政策缓解内部冲击与价格稳定首要目标已处于两难境地。实现统一的“大财政”,通过财政转移 ,重新配置资源 ,以帮助成员国吸收不对称冲击的影响 ,是提高欧元体系财政与货币政策协调性措施之一。     

发展中国家的货币错配与汇率制度选择困境

货币错配是诱发发展中国家货币金融危机的一个重要因素,也加大了危机的解决成本。货币错配问题的形成是内外因素双重作用的结果,长期实行的“软”钉住汇率制度是其中的一个重要原因。发展中国家普遍遇到了货币错配与汇率制度选择的两难困境,僵硬的汇率制度为货币错配风险的累积提供了正向激励,加深了货币错配,货币错配程度的加深强化了汇率制度的“浮动恐惧”,必须采取有效措施走出这个困境。     

Convertibility risk: the precautionary demand for foreign currency in a crisis

This paper presents theoretical work linking money demand to the perceptions of households about the risk that domestic currency may become inconvertible or that it may be devalued. An empirical investigation of the size of this effect is carried out using monthly data for Korea to estimate an augmented demand-for-money equation. It is found that the fear of inconvertibility arising from the 1997 Korean currency crisis may have caused broad money demand to fall by 4–5% points,equivalent to the loss of reserves of $6–7.5 billion (or about 30% of reserves as measured at end-November 1997). This is a revised version of IMF Working paper WP/2001/210; it was written while Professor Black was Senior Policy Advisor at the IMF Institute and Christofides and Mourmouras were staff members in the IMF’s Policy Development and Review Department. The views expressed are those of the authors and should not be attributed to the IMF, its Executive Board, or its management. For useful comments and suggestions we thank an anonymous referee, Tim Lane, Ydahlia Metzgen, Roberto Perelli, Tony Richards, Christian Mulder, Steve Russell, as well as seminar participants at the IMF Institute, the IMF’s Asia and Pacific Department, Federal Reserve Board, and Bank of Indonesia. We would also like to note similar (unpublished) empirical results using our approach by Dr. Rino Effendi for Indonesia and Angana Banerji for Russia     

Cointegration and causality in the Asian and emerging foreign exchange markets: Evidence from the 1990s financial crises

This article examines the cointegration level, changes in the existence and directions of causality of the foreign exchange (FX) rates in the Asian and emerging markets during the 1990s financial crises. Engle and Granger's simple bivariate and Johansen's multivariate cointegrations are applied to the FX rates for the 1994 Mexican, 1997 Asian, 1998 Russian, and 1999 Brazilian crises. In addition, the article conducts the Granger causality test and impulse response analysis to examine the causality pattern in all the FX rates. The analysis shows most of the pre-Mexican causality disappears and significant numbers of new causality emerge in the 1994 Mexican crisis while the 1997 Asian crisis generates significant spillover effects into the later part of the 1998 Russian and 1999 Brazilian crises.     

Current account adjustment in industrial countries

This paper examines the dynamics of current account adjustment among industrial countries. The purpose is to evaluate whether there is a threshold level of a current account deficit at which it becomes unsustainable and whether it is possible to characterize episodes of adjustment. We identify 25 episodes in which there was a sustained improvement in the current account following a large deficit between 1980 and 1997. We find that a typical current account reversal begins when the current account deficit is about 5% of GDP. However, we also find considerable cross-country variation in the reversal threshold, consistent with a stock-adjustment model of current account sustainability. Reversals are associated with slowing income growth and a 10–20% real exchange rate depreciation. Real export growth, declining investment, and an eventual leveling off in the budget deficit–GDP ratio are also likely to be part of the adjustment. These results imply that current account reversals in industrialized countries are related to the business cycle.     

Measuring Inflation Expectations Uncertainty Using High‐Frequency Data

Inflation expectations play a key role in determining future economic outcomes. The associated uncertainty provides a direct gauge of how well‐anchored the inflation expectations are. We construct a model‐based measure of inflation expectations uncertainty by augmenting a standard unobserved components model of inflation with information from noisy and possibly biased measures of inflation expectations obtained from financial markets. This new model‐based measure of inflation expectations uncertainty is more accurately estimated and can provide valuable information for policymakers. Using U.S. data, we find significant changes in inflation expectations uncertainty during the Great Recession.     

Monetary Policy,Trend Inflation,and Unemployment Volatility

The literature has long agreed that the DMP model (after Diamond 1982, Mortensen 1982, Pissarides 1985) with search and matching frictions in the labor market can deliver large volatilities in labor market quantities, consistent with empirical data, only if there is at least some wage stickiness. I show, however, that the model can deliver nontrivial volatilities without wage stickiness, as long as it has price dispersion and nonzero long‐run inflation rates. I find that by keeping inflation at a positive rate, monetary policy may be accountable for the large standard deviations observed on labor market variables. In addition, the Shimer (2005) puzzle disappears under monetary policy shocks.