Liquidity management of foreign exchange reserves in continuous time

In order to cope with daily foreign currency exchange payments or trades and avoid liquidity crisis, central banks need to maintain the liquidity of foreign exchange reserves. In this paper, we develop a Foreign Exchange Reserves Liquidity Management (FERLM) model based on stochastic process by introducing a foreign exchange factor. We also generate a feasible target proportion of the liquidity reserve to total foreign exchange reserves, by seeking the balance between capital gains of holding foreign exchange reserves and losses of liquidity insufficiency.     

货币危机预警理论及实证比较研究——兼对中国的模拟分析及启示

随着我国汇率制度改革的不断深入,人民币汇率浮动的幅度扩大,汇率对经济的调节功能日益显现。这同时也增大了我国的货币风险。文章在论述东南亚金融危机后货币危机理论最新发展的基础上,从理论和实证角度比较了五种货币危机预警模型的预警效果、优缺点,并对预警模型在我国的模拟应用作了探讨。     

中国货币替代现象的VEC模型:1994-2005

随着人民币汇率制度改革的进行和资本账户开放进程的加快,中国的货币替代现象理当引起我们更大的关注.本文通过建立货币替代的VEC模型对中国的货币替代程度及其影响因素之间的关系作了动态分析,最后得出人民币名义有效汇率在长期和短期内都是影响中国货币替代的主要因素,名义有效汇率的频繁波动会造成货币替代乃至货币需求的不稳定.因此加快人民币汇率制度改革、降低美元在人民币汇率盯住篮子中的比重就显得尤为重要了.     

Endogenous inflows of speculative capital and the optimal currency appreciation path

Abstract This paper examines the optimal appreciation path of an undervalued currency in the presence of speculative capital inflows that are endogenously affected by the appreciation path. A central bank decides its appreciation policy based on three costs: (i) misalignment costs associated with the gap between the actual and long‐run equilibrium exchange rates, (ii) short‐term adjustment costs due to resource reallocation, and (iii) capital losses due to speculative capital inflows. Our model finds (1) when speculators face no liquidity shocks, the central bank tends to appreciate the currency quickly to discourage speculative capital; (2) when speculators face liquidity shocks, the central bank optimally pre‐commits to a slower appreciation path, and the appreciation takes the longest time when the probability of liquidity shocks takes intermediate values; (3) the central bank tends to appreciate the currency more quickly when it conducts discretionary policy.     

Capital Inflows,Exchange Rate Flexibility and Credit Booms

Historically, capital flow bonanzas have often fueled sharp credit expansions in advanced and emerging market economies alike. Focusing primarily on emerging markets, this paper analyzes the impact of exchange rate flexibility on credit markets during periods of large capital inflows. It is shown that bank credit is larger and its composition tilts to foreign currency in economies with less flexible exchange rate regimes, and that these results are not explained entirely by the fact that the latter attract more capital inflows than economies with more flexible regimes. The findings thus suggest countries with less flexible exchange rate regimes may stand to benefit the most from regulatory policies that reduce banks' incentives to tap external markets and to lend/borrow in foreign currency; these policies include marginal reserve requirements on foreign lending, currency‐dependent liquidity requirements and higher capital requirement and/or dynamic provisioning on foreign exchange loans.     

汇率决定中的货币替代——以中国相关数据验证

在考虑汇率的影响因素时,传统的汇率决定理论主要是从一国的宏观基本因素进行分析.随着经济全球化的出现,货币的跨国流动规模越来越大,货币替代现象日益严重,对汇率的干扰也越来越强.本文在货币分析法的基础上加入货币替代因素,建立了一个简单的分析框架,并运用我国的相关数据对此进行检验,证实货币替代确实对汇率产生了很大的影响.     

Do German,Japanese, and U.S. export prices asymmetrically respond to exchange rate changes? Evidence from aggregate data

This article estimates the responses (elasticity coefficients) of the export price index to appreciation and depreciation of the nominal effective exchange rate using quarterly data (1973:1–1997:2) for Japan, Germany, and the United States. Cross-country comparisons of the elasticity magnitudes based on the statistically superior of the estimated models indicate that Japanese exporters, in the aggregate, have the highest tendency to dampen the effects of exchange rate fluctuations on the foreign currency export prices in both directions by adjusting their home currency prices. Intracountry comparisons provide some evidence of an asymmetric adjustment in export prices in the cases of Japan and Germany.     

Behavioural equilibrium exchange rate and total misalignment: evidence from the euro exchange rate

In the present paper we attempt to investigate whether the nominal exchange rate of the euro against the currencies of the four major trading partners of the eurozone, namely China, Japan, the UK and the USA, converges or not to its equilibrium level. Applying recent unit root and system cointegration techniques in the presence of structural shifts in the data, our results indicate that there exist an equilibrium relationship between each of the euro/yuan, euro/yen, euro/UK pound and euro/US dollar nominal exchange rates and the fundamentals defined by the monetary model. Following these results, our modified Behavioural Equilibrium Exchange Rate model suggests that at the end of the estimated period, the euro/Chinese yuan and the euro/UK pound nominal exchange rates follow an equilibrium process. Our empirical results also imply that the single European currency is considered as overvalued against the US dollar, while it is considered as undervalued against the Japanese currency.     

关于货币危机后经济衰退的经验分析

文章以1990年以来的近200次货币危机为样本,对货币危机后的经济衰退进行了经验分析.研究发现,危机前的经常账户状况、外债余额占GDP比例、国际流动性指标等经济变量以及危机后的汇率制度都不会显著影响到危机后的经济衰退.另外,危机后的经济衰退与危机国政府在危机中是否抛售外汇储备、是否采取汇率贬值都没有明显关系.但是经济分析的结果表明,危机前的失业率和汇率制度以及危机中是否提高利率等因素对危机后的经济衰退有显著作用.     

Are Indian rice exporters able to price discriminate? Empirical evidence for basmati and non-basmati rice

The role of exchange rate fluctuations on the pricing behaviour of Indian rice exporters in their major destination markets is examined using the pricing-to-market (PTM) model. The analysis was undertaken in a context where India has emerged as a leading exporter of rice in the world market. The study distinguishes between basmati and non-basmati rice in the analysis as the destination markets differ across these two varieties. One of the key contributions of this study is that it undertakes an analysis under 3 exchange rate models, they are: nominal, real and commodity-specific exchange rates. The results from our analysis indicated the presence of non-competitive pricing behaviour of India’s rice exporters in majority of destination markets due to both the market-specific characteristics as well as exchange rate-induced effects. The amplification of exchange rate effects was more prominent in commodity-specific exchange rate model whereas local currency stabilization was more prominent under nominal and real exchange rate models. Furthermore, the analysis showed that the commodity-specific exchange rate better predicts the PTM behaviour of rice exporters.     

流动性过剩影响因素的实证分析

通过货币的供求对比测度出流动性过剩,采用主成分分析方法研究了流动性过剩的影响因素。实证结果表明,货币存量的持续高位、经济增长、持续低利率与人民币升值、物价指数的高涨、外汇储备和净出口增加导致流动性过剩,资产价格与流动性过剩之间存在反向关系,各因素之间存在着交互影响。实证结果与理论分析结论高度吻合。     

The Real Exchange Rate Always Floats

This paper makes two main points. First, irrespective of nominal exchange rate arrangements, the real exchange rate always floats — if not through nominal exchange rate adjustment, then through price change. Further, because prices and wages tend to be sticky, the adjustment of real exchange rates towards long–run equilibrium takes time, as witnessed by long–lasting currency misalignments around the world. In second place, real exchange rates are rather likely to fluctuate on their way towards long–run equilibrium because of the dynamic interaction between real exchange rates and the current account or, put differently, because the structure of lags with which exchange rates impact the volume of exports and imports may give rise to oscillatory behaviour.     

INFLATION STABILIZATION AND NOMINAL ANCHORS

This paper analyzes the choice of a nominal anchor in disinflation programs in chronic inflation countries. Both theory and evidence suggest several conclusions. (i) The recessionary effects associated with disinflation appear in the early stages of money-based programs but only in the late stages of exchange rate-based programs. (ii) Lack of credibility is more disruptive under fixed exchange rates than under floating exchange rates. (iii) Attempting to pursue a disinflationary policy while maintaining a given level of the real exchange rate is likely to be self-defeating. (iv) A high degree of currency substitution favors the exchange rate as the nominal anchor.     

Monetary policy and exchange rate dynamics in the Spanish economy

As the Spanish economy gets more integrated in international markets, the real exchange rate becomes a key determinant of the monetary transmission. In this paper we trace out the dynamic response of prices, output and the exchange rate following a monetary policy shock. We estimate a structural VAR model whose identification scheme is based on the long run properties common to a large class of models. The results suggest that a small model with efficient asset markets plus nominal inertia and long run monetary neutrality, captures the essential features of the monetary transmission mechanism in Spain. The interest rate shock is well identified and the exchange rate overshoots its long run value. There are no signs of liquidity puzzle nor of price puzzle or exchange rate puzzle either.     

Re-examining the exchange rate pass-through into import prices using non-linear estimation techniques: Threshold cointegration

We document a significant threshold cointegrating relationship among effective nominal exchange rates and import prices. Using quarterly data for five industries of 16 OECD countries, we find that the degree of pass-through improves dramatically from the 50% average documented in the literature once threshold effects are recognized. The results of our threshold cointegration model show that import prices respond faster and by a larger extent to nominal exchange rate shocks than is the case for more conventional models. These findings give empirical support to the hypothesis that an equilibrium rate of pass-through exists (e.g. [Bacchetta, P., & Van Wincoop, E. (2005). A Theory of the currency denomination of international trade, Journal of International Economics 67, 295–319; Devereux, M., Engel, C., & Storgaard, P. (2004). Endogenous exchange rate pass-through when nominal prices are set in advance, Journal of International Economics 63(2), 263–291]).     

Dynamic response of bank-intermediated trade finance to a global liquidity shock

This paper investigates the bank-level responses of a bank-intermediated instrument of trade finance to a negative global liquidity shock in Korea. Using a factor-augmented vector autoregression approach, the results show that there exists significant heterogeneity in bank-level trade-finance responses to a global liquidity shock. In addition, we find that the source of the heterogeneity is the bank-level foreign currency liquidity condition; banks with a better foreign currency liquidity condition may dampen the negative impact of a global liquidity shock on trade-finance.     

On the Exchange Rate as a Nominal Anchor: The Rise and Fall of the Credibility Hypothesis

The credibility hypothesis, which was used to support the use of a pegged exchange rate arrangement as a nominal anchor mechanism, is based on restrictive analytical foundations that circumscribe its real world applicability. While all pegged exchange rate arrangements are subject to circumstances that can undermine the sustainability of the peg, exchange rate nominal anchor pegs are especially fragile because such arrangements introduce problems that are endogenous to that particular type of regime. The East Asian crisis is used to demonstrate the fragility of exchange rate nominal anchor pegs, while the case of Australia demonstrates how a floating currency escaped the contagion of the East Asian crisis.     

Monetary stabilization in countries in transition

The best way to prevent hyperinflation when domestic prices are liberalized is to initiate the transition from a planned economy to a market economy with a currency reform. In the following period, moderate inflation and flexible exchange rates are suitable to facilitate relative price adjustments. Only after the bulk of alignments has been accomplished can a switch in the exchange rate regime be convenient. The nominal peg of a stable reference currency lowers the level and the variance of domestic inflation rates. The credibility of an exchange rate target may best be achieved by combining a currency board (objective sustainability) with a crawling peg (political sustainability). Price stability can be realized in the long run by reducing the annual depreciation rate in regular, preannounced steps.     

我国外汇存款准备金问题研究

2007年美国次贷危机爆发后,全球性的流动性过剩被流动性不足所替代,美国政府采取了扩张性的政策组合,即以降息和提供紧急流动性援助方式为代表的扩张性货币政策、以减税为代表的扩张性财政政策以及纵容美元贬值的汇率政策,以对中国经济政策的调整空间形成制约.我国中央银行上调外汇存款准备金率以及要求用外汇缴存新增人民币存款准备金的做法,并不能从根本上缓解人民币汇率的升值压力,相关的外汇存款准备金制度设计还有待改进.     

人民币有效汇率波动对货币替代影响的实证研究

本文检验了2003年1月～2008年5月人民币有效汇率走势和波动率对人民币货币替代的影响程度。基于VAR模型的方差分解显示,总体上有效汇率因素对货币替代具有一定程度的影响,且NEER比REER影响更大。Johansen协整检验发现,人民币货币替代率与人民币NEER、REER及其波动率之间存在长期稳定的协整关系。VEC模型揭示了有效汇率的短期波动对货币替代率的长期均衡关系有一定冲击,但影响的弹性较小。2003年以来人民币的反替代现象主要是由于在人民币持续升值的现实和预期下,巨额外资输入寻求避险和保值引起的货币供给量持续增加而导致的。本文建议货币政策要与汇率政策进行协同,将名义有效汇率纳入政策考虑因素有助于提高货币政策的执行效率。