中国外汇储备对货币政策的影响

20世纪90年代中期以来,我国外汇储备在国际收支双顺差和外汇管理体制改革的推动下超常增长,并成为制约货币政策有效性的重要因素。本文从理论上阐明了在开放经济条件下,外汇储备与货币政策的内在逻辑联系;从实证角度剖析了外汇储备变动对我国货币政策调控的冲击,以及引起汇率政策与货币政策的冲突。我国应改革现行的外汇管理制度,加大公开市场业务操作力度,促使国际收支结构平衡,以提高货币政策实施的自主性和灵活性。     

Asymmetric effects of monetary policy shocks on economic performance: empirical evidence from Turkey

This study investigates the asymmetric effects of monetary policy shocks on the macroeconomic variables of exchange rate, output and inflation for an emerging economy ? Turkey ? by using monthly data between 1990 and 2014. We employ the innovative nonlinear vector autoregressive model of Kilian and Vigfusson (2011), which allows us to observe the effect of different stances (tight or loose) and different sizes (small or large) of monetary policy actions. Our empirical evidence reveals that tight monetary policy, which, in this case, is captured with a positive shock to interest rate, decreases exchange rate, output and prices, as economic theory suggests. Loose monetary policy, which is captured with a negative shock to interest rate, has the opposite effect on these variables. However, the effects of loose monetary policy are weaker than the effects of tight monetary policy because loose monetary policy shocks are less effective than tight monetary policy shocks. Moreover, as the magnitude of a shock increases, the difference between the effects of tight and loose monetary policy policies also increases.     

The monetary autonomy of Finland: What can the time series analysis tell us?

The effectiveness of domestic monetary policy under fixed exchange rates is highly dependent on the response of the foreign exchange reserves to a monetary expansion or contraction. Domestic monetary conditions, in turn, can be expected to be subject to shocks emerging from changes in reserves. These shocks can badly harm stabilization objectives if they are not neutralized. This paper analyzes the monetary autonomy of the Finnish economy during the 1970's and early 1980's using a data-oriented approach suggested byGeweke. A purely empiristic interpretation of the results would indicate that the degree of monetary autonomy is high and increasing over time. However, incorporating theoretical considerations turns this conclusion upside down. The Finnish financial system has in all likelihood experienced structural changes that have reduced the potential for effective monetary policies. On the other hand, we do not find any evidence of strong effects of reserve shocks on the domestic money and credit markets, though the importance of such shocks may have increased slightly. Methodologically, the analysis highlights that economic theory is needed in organizing empirical observations even when the point of departure is data-oriented.     

Monetary transmission mechanisms in a small open economy: a Bayesian structural VAR approach

Abstract This paper develops a Bayesian structural VAR model for Canada in order to estimate the effects of monetary policy shocks, using the overnight rate target as the policy instrument. I allow the policy variable and other home and foreign variables to interact with each other contemporaneously. The key finding is that monetary policy affects the real economy through both the market interest rate and the exchange rate. I also find that the Bank of Canada responds to any home and foreign variables that embodies information about future inflation and that external shocks are an important source of output fluctuations.     

Time Inconsistency and the Exchange Rate Channel of Monetary Policy

This paper analyses time–inconsistency problems related to the exchange rate channel of monetary policy. Within a simple open–economy macroeconomic model, where the exchange rate is the only forward–looking variable, we show that a difference emerges between optimal policy under discretion and under commitment. Moreover, the nature of the time–inconsistency problem resembles that resulting from standard New Keynesian models: when cost–push shocks occur, the exchange rate channel gives rise to excessive output stabilisation and insufficient inertia in monetary policy under a discretionary policy.
JEL classification : E 42; E 52; E 61     

Asymmetric responses of money demand to oil price shocks in Saudi Arabia: a non-linear ARDL approach

Saudi Arabia is an open oil-based economy with fixed exchange rates; therefore, it has limited monetary policy autonomy. Using non-linear autoregressive distributed lag approach, this article investigates the asymmetric effects of oil price shocks on the demand of money in Saudi Arabia over the period 1990:Q1–2014:Q4. The empirical results show evidence of positive long run but asymmetric effects of oil price shocks on the money demand. In particular, we find that the positive oil price shocks are more important than negative shocks. Therefore, two policy responses can be considered: either sustaining the fixed exchange rate regime and following an economic diversification policy or switching towards a flexible exchange rate regime to achieve price stability. In that case, the existence of a stable money demand function in Saudi Arabia is a necessary precondition for adopting a monetary policy strategy targeted to price stability using instruments like money targeting.     

Cross‐country asymmetries in monetary policy transmission: evidence from EMU members

This paper analyzes monetary policy asymmetries in EMU participating countries. In particular, we use a structural dynamic modelling approach to investigate asymmetric monetary transmission in Europe. Asymmetries are investigated in two different ways. First, we restrict the estimated structural models reflecting the monetary constraints each country faced during the EMS period. We obtain well‐behaved and comparable effects of monetary policy shocks. Second, efficiency frontiers for the selected EMU countries are estimated. In computing the optimal combinations of output gap and inflation volatility we use a weighted average of interest rate and exchange rate, i.e. the Monetary Condition Index (MCI), as a policy instrument. The impulse response analysis implemented with the MCI shows relatively small differences in the responses of the real economy to monetary policy shocks. Altogether the results suggest that, no matter which policy instrument is used, output gap and inflation respond to identical monetary shocks with a similar speed and movement, albeit with a different degree of effect.     

Exchange Rate Dynamics with Foreign Reserves: Revisiting the Dornbusch Overshooting Model

The purpose of this study is to shed light on the management of foreign reserves that possibly have contradictory policy intentions and impacts, for instance, (1) to defend the domestic currency, (2) to depreciate the domestic currency. With this Möbius's strip‐like nature in mind, we extend the Dornbusch (1976) exchange rate overshooting model with the foreign reserves. Depending on financial vulnerability, the presence of foreign reserves could amplify or alleviate monetary policy shocks on the exchange rate.     

Monetary Policy in the Open Economy Revisited: Price Setting and Exchange-Rate Flexibility

This paper develops a welfare-based model of monetary policy in an open economy. We examine the optimal monetary policy under commitment, focusing on the nature of price adjustment in determining policy. We investigate the implications of these policies for exchange-rate flexibility. The traditional approach maintains that exchange-rate flexibility is desirable in the presence of real country-specific shocks that require adjustment in relative prices. However, in the light of empirical evidence on nominal price response to exchange-rate changes—specifically, that there appears to be a large degree of local-currency pricing (LCP) in industrialized countries—the expenditure-switching role played by nominal exchange rates may be exaggerated in the traditional literature. In the presence of LCP, we find that the optimal monetary policy leads to a fixed exchange rate, even in the presence of country-specific shocks. This is true whether monetary policy is chosen cooperatively or non-cooperatively among countries.     

IDENTIFYING THE EFFECTS OF SIMULTANEOUS MONETARY POLICY SHOCKS

Many central banks, particularly in the developing world, aim for exchange rate stability as a macroeconomic goal. However, most are reluctant to relinquish monetary policy autonomy, so they end up operating through both interest rate and foreign exchange interventions. But the use of multiple policy instruments does not necessarily equip monetary authorities with better tools to achieve their targets. On the contrary, their effects can potentially offset each other. Using daily data from the Central Bank of Colombia during the period of 1999–2012, I study the effects of simultaneous policies by first deriving new measures of monetary shocks and then determining their impact on economic activity. The main findings indicate that (a) while interest rate interventions have a significant impact on real and nominal variables, foreign exchange interventions tend to have limited effects; and (b) empirical anomalies, such as the positive relationship between output growth, inflation, and the policy rate are eliminated when properly accounting for the systematic responses of policy. (JEL E43, E52, E58, F31)     

Analysis of shock transmissions to a small open emerging economy using a SVARMA model

Using a parsimonious structural vector autoregressive moving average (SVARMA) model, we analyse the transmission of foreign and domestic shocks to a small open emerging economy under different policy regimes. Narrower confidence bands around the SVARMA responses compared to the SVAR responses, advocate the suitability of this framework for analysing the propagation of economic shocks over time. Malaysia is an interesting small open economy that has experienced an ongoing process of economic transition and development. The Malaysian government imposed exchange rate and capital control measures following the 1997 Asian financial crisis. Historical decomposition and variance decomposition allow contrast of shocks propagating under different policy regimes. Malaysia is highly exposed to foreign shocks, particularly under the managed float exchange rate system. During the pegged exchange rate period, Malaysian monetary policymakers experienced some breathing space to focus on maintaining price and output stability. In the post-pegged period, Malaysia's exposure to foreign shocks increased and in recent times are largely driven by world commodity price and global activity shocks.     

The role of the exchange rate in Canadian monetary policy: evidence from a TVP-BVAR model

A time-varying parameters Bayesian structural vector autoregression (TVP-BVAR) model with stochastic volatility is employed to characterize the monetary policy stance of the Bank of Canada (BoC) in terms of an interest rate rule linking the policy rate to the output gap, inflation and the exchange rate. Using quarterly bilateral Canadian–US data, we find such an interest rate rule to have little explanatory power for the early part of our sample starting in the mid-1980s, but to become more suitable to explain interest rate dynamics from the mid-1990s onwards. Whereas the exchange rate turns out to be the major determinant of the policy rate in the 1980s, its importance declines throughout the 1990s and 2000s, although it continues to be influential even towards the end of the sample period ending in 2015Q2. We also find interest rate shocks to have become more effective in influencing the macroeconomy over time, indicating that the BoC has continually gained monetary policy credibility. We associate this development with the BoC successively de-emphasizing the role of the exchange rate in informing interest rate decisions, thereby alleviating the potential monetary policy conflict between targeting the exchange rate and maintaining the price stability goal.     

THE SIZE OF FISCAL MULTIPLIERS AND THE STANCE OF MONETARY POLICY IN DEVELOPING ECONOMIES

Implementing fiscal programs during monetary policy expansions seems to improve significantly their economic stimulus. We find this result by estimating the effect of government consumption shocks on gross domestic product (GDP) using a panel of 23 developing economies. Our goal is to better understand the reasons for the low fiscal multipliers found in the literature by performing estimations for alternative exchange rate regimes, business‐cycle phases, and monetary policy stances. In addition, we perform counterfactual simulations to analyze the possible gains from fiscal‐monetary policy coordination. Our results also show lower multipliers in developing economies with flexible regimes, especially during economic slowdowns. (JEL E62, E63, F32)     

略论我国巨额外汇储备对从紧货币政策的影响

外汇储备作为一国经济金融实力的标志,它是弥补本国国际收支逆差、稳定本国汇率以及维持本国国际信誉的物质基础,但外汇储备并非多多益善.尤其对我国2008年开始实行的从紧货币政策而言,巨额的外汇储备导致的外汇占款会形成强大的压力,以至削弱货币政策的有效性.从我国外汇储备状况的现实入手,分析了我国外汇储备迅猛增长的原因及巨额外汇储备对我国从紧货币政策造成的压力.     

Structural VAR models for Malaysian monetary policy analysis during the pre- and post-1997 Asian crisis periods

This article conducts an in-depth investigation into building a Structural Vector Autoregression (SVAR) model and analysing the Malaysian monetary policy. Considerable attention is paid to: (i) the selection of foreign, policy and target variables; (ii) establish identifying restrictions and improve the estimates of impulse response functions; (iii) assess the importance of intermediate channels in transmitting monetary policy mechanism; and (iv) the way in which the 1997 Asian financial crisis affected the working of monetary policy. Malaysia is an interesting small open economy to study because, following this crisis, the government imposed capital and exchange rate control measures. The overall results suggest that the crisis and the subsequent major shift in the exchange rate regime have significantly affected the Malaysian ‘Black Box’. In the pre-crisis period, domestic variables appear to be more vulnerable to foreign monetary shocks. Further, the exchange rate played a significant role in transmitting the interest rate shocks, whereas credit and asset prices helped to propagate the money shock. In the post-crisis period however, asset prices play a more domineering role in intensifying the effects of both interest rate and money shocks on output, and the economy was insulated from foreign shocks.     

Rational expectations,market shocks,and the exchange rate

The world economy has been subjected to numerous real shocks in recent years. In addition, purchasing-power parity seems to have collapsed. Critics of the monetary approach to the exchange rate have been quick to draw attention to these facts. This paper extends the basic framework of the monetary approach so that it provides a useful tool for explaining the impact of real shocks on the exchange rate and so that it is compatible with the existence of significant deviations from purchasing-power parity. The real shocks that are discussed include changes in commercial policy, the terms of trade, and productivity. It is demonstrated that real shocks influence the exchange rate through two distinct channels—a real-income channel and a deviations from purchasing-power-parity channel.     

Exchange rate movements and monetary policy in Brazil: Econometric and simulation evidence

The literature on monetary economy has aroused growing interest in macroeconomics. Due to computational advancements, models have become increasingly more complex and accurate, allowing for an in-depth analysis of the relationships between real economic variables and nominal variables. Therefore, using a dynamic stochastic general equilibrium (DSGE) model, based on Gali and Monacelli (2005), we propose and estimate a model for the Brazilian economy by employing Bayesian methods so as to assess whether the Central Bank of Brazil takes exchange rate fluctuations into account in the conduct of monetary policy. The most striking result of the present study is that the Central Bank of Brazil does not directly change the interest rate path due to exchange rate movements. A simulation exercise is also used. Our conclusion is that the economy quickly accommodates shocks induced separately on the exchange rate, on the terms of trade, interest rate, and global inflation.     

Inflation targeting and exchange rate volatility smoothing: A two-target,two-instrument approach

This paper introduces a strategy to model a small open economy, whose central bank has established two simultaneous policy objectives: an inflation target, and a maximum limit for nominal exchange rate volatility. In line with the Tinbergen–Aoki condition, the monetary authority establishes two policy instruments, one for accomplishing each target: the monetary policy rate, and the stock of foreign exchange reserves. Monetary policy analysis is built around a non-microfounded augmented New Keynesian DSGE model estimated through Bayesian techniques for the Guatemalan economy. It is found that each instrument is efficient in accomplishing its own target. Nevertheless, a coordinated effort is required for central bank policymakers before employing both instruments simultaneously, in order to avoid sending mixed signals to economic agents about its monetary policy stance, and endanger the achievement of its inflation target.     

A K% MONEY GROWTH LEADERSHIP RULE IN AN INTERNATIONAL MONETARY POLICY GAME

This paper examines a version of the Friedman k% money growth rule in an open economy monetary policy game. Using the two-country model proposed by Canzoneri and Henderson (1991), we show that, in response to asymmetric aggregate demand shocks, the Pareto-efficient outcome can be achieved by a policy that we call a k% money growth leadership rule. Following that rule, one country, the leader, sets her money supply growth rate, and the follower sets her money supply growth rate so as to keep the sum of nominal money supply growth at k%. We show that this policy yields the same outcome as does cooperative equilibrium. We also show that alternative policy rules, such as keeping exchange-rate adjusted money supply growth at k%, or forming a currency union, will not lead to the Pareto-efficient outcome in response to these demand shocks. ( JEL E5, F3)     

Information from financial markets and VAR measures of monetary policy

Exogenous measures of monetary policy shocks, directly derived from financial market information, are used in close (US) and open (US–Germany) economy VAR models to evaluate the robustness of the dynamic effect of monetary policy obtained from traditional identified VAR. The empirical analysis confirms the main features of the monetary policy transmission mechanism in US and Germany, explicitly addressing the issue of simultaneity between the German policy interest rate and the US dollar–DMark exchange rate.