Currency Boards when Interest Rates are Zero

In a fixed exchange rate system, any expectation that the peg may be abandoned will normally be reflected in an interest rate differential between instruments denominated in domestic and anchor currencies: the possibility of a revaluation will drive domestic interest rates below those in the anchor currency, for example. However, when interest rates are close to the zero lower bound, there is limited scope for exchange rate expectations to be reflected in interest rate differentials. Here we introduce a new mechanism, based on the central bank balance sheet, which works to bring about equilibrium in currency markets even when interest rates are zero. An expectation of exchange rate appreciation will cause foreign exchange reserves to swell, increasing the cost to policy‐makers of allowing an appreciation and, therefore, lowering the likelihood of the fixed exchange rate being abandoned. Under normal circumstances, this channel reinforces the equilibrating effect of interest rate differentials. When interest rates cannot adjust only this channel operates, implying that much larger changes in reserves are required to equilibrate currency markets. We develop a simple model to illustrate these arguments and find support for the predictions of the model using data for Hong Kong, the world's largest economy with a currency board.     

Volatility of fundamental variables under different exchange rate system--a simple test for Hong Kong

This paper presents a comparison in the changes of Hong Kong macroeconomic fundamental variables before and after its currency was ‘pegged’ to the US dollar in October 1983. Using a simple method from Flood and Rose (1995) and Baxter and Stockman (1989), this paper compares the volatilities of all aggregate variables used by those investigators in so far as these data are available for Hong Kong. The results show, contrary to the dominating empirical literature for the G-7 countries, that the volatilities of more than half of the nominal and real variables under the float are significantly higher than those under the link.     

Bi‐currency versus Single‐currency Targeting: Lessons from the Russian Experience

This paper examines how the 2005 shift in Russian exchange rate policy from US dollar (USD) single‐currency to USD–EUR (euro) bi‐currency targeting has impacted domestic interest rates. The finding show that this policy shift has disconnected Russian interest rates from US dollar‐denominated interest rates, while instead linking them to a synthetic interest rate composed of USD and EUR rates at the same proportion as that of these two currencies in the currency basket against which the ruble's exchange rate is set. The Russian experience shows that while the adoption of bi‐currency targeting may help ensure that domestic interest rates are less dependent on the monetary cycle of a single country, these rates are instead likely to reflect financial developments in all countries whose currencies are included in the currency basket. This insight is likely to be relevant for other countries that pursue basket‐targeting policies.     

人民币区域接受程度： 指数构建与影响因子计量 ——以东盟及中国香港为例

金融危机以来,改革现有的国际货币体系,逐步推进“去美元化”进程,已是国际社会共识。周边化及区域化是人民币国际化进程中的重要阶段,建立人民币区域接受程度监测指标体系,具有重要意义。本文基于对东盟及中国香港人民币使用情况的分析,提出人民币区域接受程度指数的构建框架并进行影响因子的计量分析,实证结果表明：(1)在政策推动及市场需求双重作用下,未来东盟人民币接受程度将持续提升,但短期内受经济政治影响会出现较大反复;(2)受政策推动、存款规模较小以及贬值预期影响,中国香港人民币贸易接受程度的提升快于金融接受程度,提高人民币存款占比有助于提升人民币接受程度;(3)中国香港经济状况对人民币接受程度的影响力要高于内地,反映出货币国际化是市场自发选择的过程;(4)由于货币替代影响双边货币政策效果,中国香港通胀水平、利率以及内地通胀水平会受中国香港人民币接受程度的反向影响。     

Currency Substitution Between the Hong Kong Dollar and the Renminbi in South China

The present paper estimates the demand for the Hong Kong currency circulating in the Guangdong Province of China and Macau. The amount of Hong Kong dollars circulating in the Guangdong (Macau) region is reckoned to be 7.4 (3.2) percent of the total amount issued in Hong Kong. The estimated coeficients in the currency demand equation suggest that the Hong Kong currency in Guangdong is used mainly for transactions. Therefore, in spite of strong evidence of currency substitution of the Renminbi with the Hong Kong Dollar, its impact on the exchange rate and on the international reserves of Hong Kong during currency crisis should be minimal.     

Collective Perception and Exchange Rates

The authors' research suggests that people search online for information on currency exchange rates and that this information-seeking process can be translated into data on people's interest for a given currency. The authors utilize Google Trends data to capture the level of interest in 3 currency pairs: the euro, the pound sterling, and the Canadian dollar against the U.S. dollar and conduct a multivariate data analysis in the context of vector-autoregressive models. The findings suggest that there is a small but significant impact on collective perception on exchange rates. The authors show that Google Trends data could be an important source of information for investors looking into exchange rate trends.     

An Optimal Currency Basket to Minimize Output and Inflation Volatility: Theory and an Application to Hong Kong

In this paper we develop a theoretical model of an optimal currency basket for a small open economy. A currency basket for the home economy is defined as a chosen weighted average of a subset of foreign currencies, and an optimal currency basket is taken to be one that minimizes a given weighted average of the expected output volatility and expected inflation volatility. This theoretical model is then applied to Hong Kong, which has adopted a currency board system for close to 30 years. We estimate an optimal currency basket for Hong Kong and compare its performance with the existing currency board system as well as with currency baskets whose weights are given by export and import trade shares.     

The Case for Adopting the Convertible Reserves System in Hong Kong

The East Asian currency crisis spread to Hong Kong in October 1997, touching off worldwide repercussions. Weaknesses were revealed in the operational mechanism of Hong Kong's linked exchange rate system (the link). This paper casts the link as a peculiar currency board system in the proper historical and comparative contexts. After examining the conflict between the classical currency board (which relies on the two "automatic" stabilizers of specie-flow and cash arbitrage) and modern financial developments, it is pointed out that Hong Kong should move forward to the convertible reserves system of Argentina, Estonia and Lithuania (the AEL model), and adopt its cashless/electronic arbitrage arrangement to defend the link. Moreover, it is necessary to balance the need for short-term stability and the consideration of long-term flexibility. Any measure that increases the ultimate exit cost from the link must be assessed carefully.     

Choice of Exchange Rate Regime: Currency Board (Hong Kong) or Monitoring Band (Singapore)?

Following the East Asian crisis, a number of observers have advocated that small and open economies in Asia adopt an irrevocably fixed regime. Such a hard peg, it is argued, signals greater commitment to rule out arbitrary exchange rate adjustments as well as the authorities’ willingness to subordinate domestic policy objectives such as output and employment growth to the maintenance of the pegged exchange rate. But is this a reasonable position to adopt? In order to answer this question, we consider and contrast the experiences of Hong Kong and Singapore. While both of these economies share a number of broad similarities, the former operates a US dollar–linked currency board arrangement and the latter maintains an adjustable peg in the form of a monitoring band arrangement with the central parity based on an undisclosed trade–weighted currency basket.     

A synthesized discussion on the Macao monetary reform

The prolonged RMB appreciation affects Macao deeply and requires a major monetary reform without further delay. What we propose for Macao reform as an optimal choice includes shifting its monetary anchor to the strong RMB, revaluing its domestic currency to the original level, and setting up a sovereign wealth fund for autonomous growth. This proposal is based on Macao’s economic fundamentals such as trade competitiveness, business relations, real welfare, monetary stability, and genuine development. We also recommend a monetary union of Macao with Hong Kong as the 2^nd-best choice of reform by introducing what we term the SAR dollar.     

Three measures of East Asian currency evaluation

One of the prominent explanations for the East Asian financial crises of 1997 relies upon East Asian currency overvaluation. However, most empirical studies of these crises do not undertake serious examination of whether these currencies were overvalued. In this article, three major approaches to identifying the equilibrium exchange rate are implemented: long-run purchasing power parity (PPP), a productivity-based model, and a monetary model of the nominal exchange rate. The PPP calculations indicate that as of May 1997, the Hong Kong dollar, baht, ringgit, and peso were overvalued, and the won undervalued. In a framework that explicitly accounts for the role of productivity, substantial overvaluation of the peso is detected, but an undervaluation of the won is also uncovered. Misalignments of the ringgit and baht are small. Finally, the estimated equilibrium rates from a monetary model do not imply much deviation from short-run equilibrium at the end of June 1997. A conclusion of substantial overvaluation on the eve of the East Asian currency turmoil is not very plausible, suggesting that some alternate mechanism for generating crises - other than one involving the conventional macroeconomic fundamentals - was at work.     

人民币与港币一体化刍议

本文比较了人民币与港币一体化的成本效益,分析了两地货币一体化的现实基础和障碍,设计了人民币和港币货币一体化的模式,提出了相应的实施步骤和配套改革的对策建议。     

香港联系汇率制度的现实启示及未来挑战

本文针对香港联系汇率制度的形成历史以及原因,总结出香港的联系汇率制度形成的偶然性申的必然性,分析香港联系汇率割度的优势和弊端,以及此项制度对于香港金融市场的重大意义。针对日新月异的国际资本市场,香港也面临着挑战,香港也必须与时俱进,加强和人民币之间的联系,进而形成合理的汇率机制。本文最后勾画了香港汇率制度未来的发展前景。     

AN ANALYSIS OF HONG KONG EXPORT PERFORMANCE

Abstract.  The study models the Hong Kong domestic exports and re-exports, compares the performance of exports to the rest of the world, the USA and Japan, and uses destination-and-export-type specific unit value indexes to construct real exchange rates. In general, Hong Kong exports display mean-reverting dynamics, are positively influenced by foreign income and are adversely affected by high value of its currency. The lagged export variable, foreign income, and real exchange rate provide most of the explanatory power. Other variables explain marginally the variability of Hong Kong exports.     

The Working of the Currency Board: The Experience of Hong Kong 1935–1997

Hong Kong had twice adopted, in its modern monetary history, the currency board system: the first in November 1935, and the second in October 1983. This article provides an analysis of the modus operandi of Hong Kong's version of currency board, as well as an appraisal of its advantages and disadvantages.     

Exchange rates change,asset-denominated currency difference and stock price fluctuation

This paper examines differences in the connectedness between exchange rates and stock prices for companies with different asset currencies on the Hong Kong stock market, and it seeks to explain those differences by proposing a hypothesis on asset-denominated currency difference. Under a framework of investor heterogeneity, we establish a dynamic, discrete theoretical model to analyse the connectedness between exchange rates, the stocks of local Hong Kong companies, the stocks of companies from the mainland and foreign exchange interventions. Using monthly data from January 2000 to August 2018, we adopt the time-varying parameter vector auto-regression (TVP-VAR) model to empirically study the dynamic relationships between exchange rates and the prices of both Hong Kong-based and mainland-based stocks. The results show significant differences in the ways that exchange rates and prices for the two types of stocks are linked. The exchange rates are positively correlated with mainland stocks and negatively correlated with Hong Kong stocks. Moreover, foreign exchange intervention is found to be an effective means for stabilising exchange rates, although such intervention tends to increase stock volatility.

Abbreviations: TVP-VAR - time-varying parameter vector auto-regression model; MCMC - Monte Carlo-Markov Chain method.     

The Role of Productivity and Financial Frictions in the Business Cycles of a Small Open Economy: Hong Kong 1984–2011

This paper analyzes the business cycle properties of the Hong Kong economy during the 1984–2011 period, which includes the financial crisis experienced in 1997/98 and the economic crisis of 2008–2010. We show that the volatility respectively, of output, of the growth rate of output and of real interest rates in Hong Kong are higher than the corresponding average volatility among developed economies. Furthermore, interest rates are countercyclical. We build a stochastic neoclassical small open‐economy model estimated with a Bayesian likelihood approach that seeks to replicate the main business cycle characteristics of Hong Kong, and through which we try to quantify the role played by exogenous total factor productivity (TFP) shocks (transitory and permanent), real interest rate shocks and financial frictions. The main finding is that financial frictions, jointly with the assumption that the country spread is endogenous, seem important in explaining the countercyclicality of the real interest rates.     

The American external seigniorage: Origin,cost to Europe,and possible defences

External seigniorage is defined as the advantage resulting, for a country, from the fact that it may impose the use of its own currency on seemingly independent countries. In 1960, the United States had to resort to this device as a consequence of the dollar glut. Since then, European countries were gradually compelled to hold on to 20 billion dollars, receiving short-term interest rates for what were in fact long-term loans to America — with capital and interest losses over 13 years of 9 billions of 1972 dollars. This will stop only when the Europeans create and use their common currency.     

Uncovered Interest Parity at Long Horizons: Evidence on Emerging Economies*

This paper estimates uncovered interest parity (UIP) at long horizons using bilateral US dollar rates vis‐à‐vis mature economy and emerging market currencies. The paper finds support in favor of UIP for dollar rates vis‐à‐vis major mature economy currencies, but far less against emerging market currencies. There are also signs that political risk and the exchange risk premium help explain the empirical failure of UIP for these latter currencies. This suggests that whether UIP holds depends more on the currency than on the horizon.     

Exchange Rate Volatility and Macroeconomic Performance in Hong Kong

The paper presents evidence on whether Hong Kong’s currency board arrangement, in place since 1983, has affected the volatility of real macroeconomic variables. Simple evidence on the relative volatilities of relevant macroeconomic variables before and after 1983 is presented, before a more formal econometric framework is utilized to examine the linkages between the exchange rate and the real economy. It is found that the currency board period has been one of relative stability in Hong Kong, though it has also been a period where external factors have been relatively benign. Even after controlling for the external environment, it is found that the currency board period is one of low macroeconomic volatility.