BUBBLES IN EXCHANGE RATES AND MONETARY POLICY

We evaluate the macroeconomic performance of different monetary policy rules when there are bubbles in the exchange rate. We do this in the context of a non‐linear rational expectations model. The exchange rate is allowed to deviate from its fundamental value and the persistence of the deviation is modeled as a Markov switching process. Our results suggest that reacting to exchange rate movements does not significantly improve welfare. However, taking into account the switching nature of the economy may be more beneficial.     

开放进程中的货币政策目标和汇率制度选择

20世纪80年代以后,理论研究对货币政策目标和汇率制度选择问题进行了新的诠释,国际经验为此提供了实证支持。应用于中国的现实情况,在开放和发展进程中,不完全的资本流动性、现实经济中的多重政策目标以及宏观经济内外失衡之间的传导机制,使得中国在实施货币政策的同时,应该而且能够维持汇率的相对稳定性。     

MONETARY POLICY AND LONG-TERM INTEREST RATES

Movements in long-term interest rates Granger-cause movements in the target federal funds rate, but not vice versa, during 1990–2001. This implies that changes in the monetary policy stance, as measured by the target rate, are predicted by the bond market. Moreover, even innovations to the target rate have little effect on long-term interest rates. The policy instrument seems to be responding to information that is already impounded in the bond market. In sharp contrast, during an earlier period, changes in the target federal funds rate are mostly unanticipated by the bond market, and innovations to the policy target have a large and significant effect on long-term interest rate. ( JEL E52, E43)     

MONETARY POLICY AND LONG-TERM INTEREST RATES: A SURVEY OF EMPIRICAL LITERATURE

This paper surveys recent empirical literature on effects of monetary policy on long-term interest rates. Most studies reviewed here suggest that tightening monetary policy results in higher long-term interest rates. But available evidence suffers from conceptual and empirical problems and fails to indicate the magnitude of short-run and long-run policy effects on long rates. Also, recent studies have not investigated the possibility of shifts in recent-year effects of monetary policy on long rates. Finally, the paper offers a policy perspective on limitations of existing evidence and suggests future research on monetary policy effects on long rates.     

货币政策冲击、外汇干预与汇率变动的同期与动态关联研究

本文采用SVAR模型以及2005年7月至2011年12月的月度数据,研究了2005年的新汇率改革之后,我国货币政策冲击、外汇干预与汇率间的动态关联。主要发现与结论如下：在货币政策冲击、外汇干预与汇率三者的同期博弈中,外汇干预不能即刻影响同期汇率。利率的上升及广义货币供应量的变动均会对同期名义有效汇率造成一定影响,但不太显著。在三者的动态博弈中,外汇干预是非冲销和有效性得到验证,外汇干预信号的假设可以成立。此外,即使利率的变动并不针对汇率,却带来汇率的大幅波动。名义有效汇率的上升可以有效抑制消费价格指数（CPI）的提高,并且数量型货币政策容易造成CPI的反弹。本文针对研究结论提出了一些政策建议。     

EXCHANGE RATE REGIME AND MONETARY POLICY INDEPENDENCE IN EAST ASIA

Abstract.  This paper investigates whether the choice of exchange rate regimes influences the sensitivity of domestic interest rates to international interest rates. We empirically analyse this issue in the context of East Asian economies by employing a regime switching model. We find that the sensitivity of local interest rates to international interest rates declined in Korea and Thailand after they adopted floating exchange rate regimes. We also find that Japan, with a floating exchange regime, has greater independence in monetary policy than a pegged economy such as Hong Kong. These empirical findings suggest that exchange rate flexibility provides greater monetary independence.     

THE COMPLEX RESPONSE OF MONETARY POLICY TO THE EXCHANGE RATE

We estimate a flexible non‐linear monetary policy rule for the United Kingdom to examine the response of policymakers to the real exchange rate. We have three main findings. First, policymakers respond to real exchange rate misalignment rather than to the real exchange rate itself. Second, policymakers ignore small deviations of the exchange rate; they only respond to real exchange under‐valuations of more than 4% and over‐valuations of more than 5%. Third, the response of policymakers to inflation is smaller when the exchange rate is over‐valued and larger when it is under‐valued. None of these responses is allowed for in the widely used linear Taylor‐type rules, suggesting that monetary policy is better analysed using a more sophisticated model, such as the one suggested in this paper.     

开放经济条件下货币政策分析框架的选择

作为封闭经济条件下IS-LM模型和IS-LM-AS模型在开放经济中的拓展,M-F模型和M-F-D模型成为20世纪60—90年代开放经济宏观经济分析的工作母机。在研究开放经济中的货币问题时,M-F和M-F-D模型由于其简单明了、易于处理等优点,仍然是优先的分析工具选择。而作为M-F和M-F-D模型的新近发展,新开放经济宏观经济学框架在目前来说还难以运用于转型经济的货币政策研究。     

ROBUST MONETARY POLICY UNDER UNCERTAINTY ABOUT CENTRAL BANK PREFERENCES

In this paper, we study the impact of central bank opacity on macroeconomic performances in a new Keynesian framework with model uncertainty using robust control techniques. We identify a new source of central bank opacity, which refers to the lack of information about the central bank's preference for robustness in the sense of Hansen and Sargent . We find closed‐form solutions for the robust control problem, analysing the impact of the lack of transparency about the central bank's preferences for robustness. We show that an increased transparency about the central bank's preference for robustness makes monetary policy respond less aggressively to cost‐push shocks, thus reducing the inflation and output gap variability. As a consequence, inflation and output gap are less volatile than under central bank opacity about its preference for robustness.     

THE SUPERIORITY OF MONETARY OVER BARTER EXCHANGE: EXPERIMENTAL RESULTS AND POLICY IMPLICATIONS

William Stanley Jevons suggested that monetary exchange is socially superior to barter exchange because agents' optimization is simplified by the use of money. We experimentally study how subjects perform under monetary and barter exchange and find that a majority of subjects achieve a higher utility level in the monetized economy. The individual choices are statistically analyzed in order to track important elements of suboptimal decision making like the tendency to under‐ or over‐react to price signals. Our laboratory findings indicate that, at a minimum, government may have a role in promoting a common unit of account.     

渐进资本开放下中国货币政策的独立性

对中国资本流动程度和中国货币政策独立性的回归检验结果表明:中国的经济实践是符合不可能三角命题的。在1980—2003年间,在事实上钉住美元的固定汇率制度下,中国实行着较为严格的资本管制政策和享有独立的货币政策,但货币政策主要依赖于数量调控工具,汇率和利率的价格调控微乎其微,货币政策的独立性受到极大的挑战。     

ASIAN REAL EXCHANGE RATES AND OIL PRICES: A COINTEGRATION ANALYSIS UNDER STRUCTURAL BREAKS

We examine the long‐run relationship between Asian real exchange rates and oil prices in the presence of structural breaks. The relevance of considering breaks is demonstrated by utilizing the Johansen et al. procedure that allows for up to two predetermined breaks. Using conventional tests that do not consider breaks reveals no evidence of cointegration. However, the Johansen et al. procedure clearly demonstrates the importance of considering breaks and provides strong support for a stable long‐run relationship in all but Japan and the Philippines. Moreover, the results suggest evidence of bi‐directional causality in Malaysia and Thailand, uni‐directional causality from exchange rates to oil prices in Korea, the Philippines, and Singapore, uni‐directional causality from oil prices to the exchange rate in Indonesia, and no evidence of causality in Japan.     

FLOATING WITH A LARGE LIFE JACKET: MONETARY AND EXCHANGE RATE POLICIES IN CROATIA UNDER DOLLARIZATION

Even after more than a decade of low inflation, Croatia remains highly dollarized. Commercial banks avoid currency mismatch by indexing loans to the exchange rate. Although this eliminates direct currency risk, it creates credit risk, because any larger depreciation might induce borrower defaults. Monetary and exchange rate policies focus on exchange rate smoothing to safeguard financial stability. Dollarization has prevented the use of monetary policy to stabilize output. Given Croatia's likely entry into the EU and adoption of the Euro, dedollarization seems unfeasible. Rather than attempting to reverse dollarization, the central bank has taken measures to make the banking system more robust to shocks. (JEL E52, E58, F31, G21, P24 )     

流动性过剩背景下货币政策工具的特点及政策选择

在双顺差快速增长的背景下,数量型货币政策工具的紧缩效果在较短时间内即被外汇占款增长所抵消。名义利率调整滞后于价格水平上涨导致真实利率下降,在一定程度上进一步抵消了货币当局通过数量工具收缩流动性的效果。在宏观经济存在潜在过热风险的情况下,货币政策可依据泰勒规则加强对名义利率的调整,避免宏观经济的过度波动。