Foreign Exchange Market Volatility in Southeast Asia

The time-varying volatility and volatility transmission in Asian foreign exchange markets are investigated in this paper. It has been found that the time-varying volatility and volatility transmission are all prominent in these markets. Moreover, variance simulation is carried out and the structure of covariance matrices examined, revealing the characteristics of Asian foreign exchange markets and offering explanations to the findings.     

Foreign Exchange Volatility Is Priced in Equities

This paper finds that standard asset pricing models fail to explain the significantly negative delta hedging errors that occur as a result of the purchase of options on foreign exchange futures. Foreign exchange volatility does influence stock returns, however. The volatility of the JPY/USD exchange rate predicts the time series of stock returns and is priced in the cross‐section of stock returns.     

The Monetary Approach to Exchange Rate in an Efficient Foreign Exchange Market: Tests Based on Volatility

The variance bounds on exchange rate movements implied by the monetary approach to exchange rate in an efficient foreign exchange market is shown to be violated by sample data. The paper also presents evidence showing that the forecast errors implied by the monetary model can be forecasted using historical data. The results are interpreted to suggest either the incompatibility of the monetary approach with sample data, or an inefficient foreign exchange market or both.     

Beating the Foreign Exchange Market

Filter rule profits found in foreign exchange markets in the early days of the current managed float persist in later periods, as shown by statistical tests developed and implemented here. The test is consistent with, but independent of, a wide variety of asset pricing models. The profits found cannot be explained by risk if risk premia are constant over time. Inclusion of the home-foreign interest rate differential in computing profits has little effect on the comparison of filter returns to those of buy-and-hold.     

Carry Trades and Global Foreign Exchange Volatility

We investigate the relation between global foreign exchange (FX) volatility risk and the cross section of excess returns arising from popular strategies that borrow in low interest rate currencies and invest in high interest rate currencies, so‐called “carry trades.” We find that high interest rate currencies are negatively related to innovations in global FX volatility, and thus deliver low returns in times of unexpected high volatility, when low interest rate currencies provide a hedge by yielding positive returns. Furthermore, we show that volatility risk dominates liquidity risk and our volatility risk proxy also performs well for pricing returns of other portfolios.     

Short-Term External Debt and Foreign Exchange Rate Volatility in Emerging Economies: Evidence from the Korea Market

Abstract:

We empirically analyze the main determinants of foreign exchange rate (FX) volatility in emerging market economies using the data of Korea corporations and financial institutions. We find that short-term external debt is more important than trading volume of foreign investors in explaining FX volatility. Our results suggest that short-term debt-controlling measures, such as a tax levy on short-term borrowing, can be more effective in moderating FX volatility than can the measures affecting the trading volume, such as a Tobin tax.     

潮起潮落看汇市

一波三折 今年年初以来伴随伊拉克战争的酝酿、爆发、结束,美元汇率的走势也随之一波三折.美元走势的急剧变化主要围绕信心、投机、政策三者的交错运用,推高或打压美元策略、技术性凸显.     

Price Limits and Stock Market Volatility in the Athens Stock Exchange

In this paper, we have examined the effects of price limits on the stock volatility in the Athens Stock Exchange. We put forward two hypotheses, the information hypothesis, which implies that price limits only slow down the process of adjustment and have no effect on stock volatility; and the over-reaction hypothesis, which assumes that investors tend to overreact to new information, so that price limits give them time to reassess the information and reduce stock volatility. Our results show strong support for the information hypothesis. This evidence is obtained by performing the tests on ten stocks, which include heavily traded stocks as well as less active stocks, and covering a variety of industries, and on a market wide price index. The results are also robust to the frequency of the measurement of the returns, and to the tightness of the limits.     

汇改后的外汇产品市场

2005年人民币汇率形成机制改革以来,外汇市场形势变化多多。梳理国内主要商业银行汇改后的外汇产品,并分析和展望其2007年的外汇产品市场发展趋势,有助于商业银行在金融创新的浪潮中占领先机。     

外汇市场的协同波动与联合干预

本文以ARMA-GARCH,GARCH-M及EGARCH模型检验中国、日本及韩国1997年1月至2010年9月的实际汇率波动,及是否存在风险溢价和杠杆效应,结果发现:中国汇率波动最为平稳,而韩国汇率波动最大,并且存在显著的风险溢价和杠杆效应。我们另外考量了中央银行干预对汇率波动的影响,发现日本中央银行干预最为有效,而韩国中央银行干预最为无效。此外,我们以BEKK-MGARCH模型检验中日韩三国的汇率协同波动现象,发现中日韩三国之间的汇率皆具有正向协同波动关系,而以日韩的协同波动持续性最为显著。若考量央行联合干预,则中日汇率的协同波动性将提高,日韩汇率的协同波动性将明显降低。此外,中日及日韩的联合干预对汇率协同波动有显著的政策效应。     

汇率改革以来中国外汇市场的发展

国际外汇市场和中国外汇市场的交易规模 按照国际清算银行的分类,外汇市场按照交易工具可以分为:传统的外汇市场和外汇衍生品市场.前者包括的交易为:现汇交易,远期交易和外汇掉期交易,后者包括的交易为:货币互换交易,外汇期权交易,以及其他涉及外汇的衍生品交易.     

央行汇率沟通与股票市场波动

本文基于2005年7月至2017年2月的日度数据,检验中国央行汇率沟通对于股票市场波动率的影响,研究结果发现:(1)央行汇率沟通会对本国股票市场产生明显的溢出效应,并显著增加股票市场的波动率,B股市场波动率反应程度显著强于A股市场。(2)书面沟通的效果强于口头沟通,口头沟通中行长沟通效果强于非行长沟通;汇率贬值的沟通效果显著强于汇率升值沟通。(3)汇率沟通对于股票市场波动率的影响存在着明显的非线性。     

Stock Market Volatility in an Emerging Market: Further Evidence from the Athens Stock Exchange

We investigate the time series properties of the daily and weekly returns from the Athens Stock Exchange (ASE) index for the years 1987 to 1997. We investigate whether important time-series characteristics have changed significantly over time. The Greek market has recently undergone major changes including complete capital flow liberalization, the implementation of computerized trading, as well as significant increases in market volume and capitalization; we thus contrast the 1987–90 and 1991–97 periods. Our findings suggest the dynamics of the ASE composite index returns have changed as the market has developed.     

我国外汇市场展望

作通过对当前我国外汇市场现状的考察，分析了我国外汇市场中存在的主要问题并提出其解决对策，进而对外汇市场的发展前景进行分析预测。     

Time‐Varying Volatility in the Foreign Exchange Market: New Evidence on its Persistence and on Currency Spillovers

We examine empirically the volatility of four major US dollar spot exchange rates using intraday data over 40 trading days. Using multivariate stochastic volatility models, we investigate the degree of persistence of exchange rate volatility for data sampled at different frequencies and the role of volatility spillovers across exchange rates. We find that the noise component of volatility 'aggregates out' very quickly, being dominated by the more persistent component of volatility for data sampled at 15–minute or lower frequencies. Our results also suggest that exchange rate volatility is very persistent and that cross–currency spillovers are small.     

外汇市场的分形分析

首先分析了外汇市场的EMH，指出了其线性范式与现实市场状况并不相符，然后通过实证，指出了外汇汇率变化不服从正态分析，而是服从分形分布；最后运用R/S方法对外汇变化进行了分形分析，提出汇率变化遵循有偏的随机游走，呈现出状态持续性，对外汇市场风险的度量提出了一些新的看法，并提出了几点政策建议。     

关于外汇市场有效性的Johnsen协整检验

采用2000年1月至2006年12月间的数据,运用协整方法对外汇市场的有效性进行了检验,研究结果显示,日元与英镑,日元与欧元,以及人民币与日元、与英镑、与欧元的汇率市场是有效的,分析认为这与实际情况比较相符,表明采用协整方法对外汇市场的长期数据进行检验来验证市场有效性是可行的.     

Structural Changes in Volatility of Foreign Exchange Rates after theAsian Financial Crisis

Regime-shift models of daily returns are estimated for the foreign exchange rates of the Asian currencies that suffered from drastic devaluation during the Asian financial crisis in 1997, and the change points are detectedfor their volatility structures. Furthermore, how the persistence in the volatility of their exchange rates changed after the crisis is examined.