What has foreign exchange market intervention since the Plaza Agreement accomplished?

We review the conduct and scale of official intervention by monetary authorities in the U.S.A., Japan, and West Germany since the Plaza Agreement. Relative to trading volume and the stock of internatonally traded assets denominated in foreign currencies, intervention is small-scale and sporadic, hence at best limited to transitory effects. It does not appear to reduce volatility of daily exchange rates. Monetary authorities gamble that they will not suffer losses on their foreign currency holdings. Evidence in favor of sterilized foreign exchange market intervention as a way of conveying information to the private sector is far from convincing. Since changes in relative monetary growth rates are sufficient to alter bilateral exchange rates, monetary authorities can achieve their exchange rate preferences with domestic monetary policy, but at the cost of possible distortionary effects on monetary growth rates, domestic interest rates, and international capital flows.     

Central bank intervention and exchange rate volatility: Evidence from Japan using realized volatility

This paper presents new empirical evidence on the effectiveness of Bank of Japan's foreign exchange interventions on the daily realized volatility of USD/JPY exchange rates using high frequency data. Following Huang and Tauchen (2005) and Barndorff-Nielsen and Shephard, 2004, Barndorff-Nielsen and Shephard, 2006, we use bi-power variation to decompose daily realized volatility into two components: the smooth persistent and the discontinuous jump components. We model exchange rate returns, the different components of realized volatility and the central bank intervention using a system of simultaneous equations. We find strong support that interventions by Bank of Japan had increased both the continuous and the jump components of daily realized volatility. This suggests that the interventions by Bank of Japan had increased market volatility which not only caused short-lived positive jumps, but were also persistent over time. We did not find any evidence that interventions were effective in influencing the exchange rate returns for the entire sample period.     

Dynamic price discovery in Chinese agricultural futures markets

Research has not fully explored how Chinese agricultural futures markets perform their price discovery function over time. Our paper examines the role of Chinese agricultural futures markets in the price discovery process based on three well-established measurements of average price discovery contribution, and more importantly, the dynamic price discovery measurement. Using daily futures and spot prices from fourteen agricultural commodities, we find eleven contracts are efficient in price discovery. Besides, market-oriented changes in policies strengthen the price discovery performance of most futures markets, except for commodities that rely heavily on imports from other countries. Our results also suggest that trading activity is particularly important in determining whether thinly traded contracts are efficient in price discovery. Our paper provides a comprehensive judgment involving both average and dynamic price discovery contribution measurements on assessing the efficiency of Chinese agricultural futures markets. Our results might also serve as a reminder that market-oriented reforms in the spot markets of commodities might be useful to intensify the pricing power of the futures markets.     

Market microstructure and price discovery on the Tokyo Stock Exchange

This paper compares the price discovery processes at the opening and closing transactions for the fifty largest stocks trading on the Tokyo Stock Exchange. Open-to-open returns are found to have a greater volatility and a more negative autocorrelation pattern than close-to-close returns, similar to the pattern we found on the New York Stock Exchange. The results are consistent with pricing over-reaction at the opening and partial price-adjustment at the close. These patterns persist over time and prevail when estimated for returns conditional on the contemporaneous market effect. Our analysis of daytime and overnight returns suggest that pricing errors at the opening are corrected over the trading day. We present a new measure of volatility — the relative dispersion of stock returns around the market return — and find that it is greater at the opening, consistent with a more noisy price discovery process.     

A structural break in the effects of Japanese foreign exchange intervention on yen/dollar exchange rate volatility

We study the impact of Japanese foreign exchange intervention on the volatility of the yen/dollar exchange rate since the early 1990’s in a GARCH framework with interventions as exogenous variables. Using daily intervention data provided by the Japanese Ministry of Finance, we show that the effect of interventions varies over time. From 1991 up to the late 1990’s, Japanese foreign exchange intervention is associated with an increase in volatility of the yen/dollar exchange rate. After the year 1997, Japanese foreign exchange intervention correlates with reductions in exchange rate volatility. This can be explained by the fact that Japanese foreign exchange intervention remained quasi unsterilized in the liquidity trap.

外汇储备增长对我国物价影响的实证分析

2007年以来,我国物价水平出现持续攀升的势头。2008年1～4月份,居民消费价格水平同比上涨8.2%。与物价上涨相对应的是我国外汇储备水平创出了历史新高,截至2008年6月末,我国外汇储备余额达1.8万亿美元。那么,外汇储备增长与物价上涨之间有没有直接的联系?本文从短期和长期两个视角,理论和实证相结合探讨了我国外汇储备增长对物价上涨的影响及其作用机制。     

ECB Foreign Exchange Intervention and the EURO: Institutional Framework,News, and Intervention

Using a unique intervention news data set, this paper investigates the impact of ECB intervention and intervention-related news (newswire reports) on the Euro exchange rate. A time-series study of news generated by ECB officials and market participants regarding intervention and the value of the Euro as well as an event study of firm reports of ECB intervention is conducted. Both studies find significant short-run effects on the Euro value, while only negative statements (official statements denying past intervention or ruling out future intervention) appear to have persistent effects.     

The foreign exchange exposure of Chinese banks

Using the capital market approach and the equity price data of 14 listed Chinese banks, this empirical study finds that there is a positive relationship between bank size and foreign exchange exposure. This relationship may reflect the larger foreign exchange operations and trading positions of larger Chinese banks and their significant indirect foreign exchange exposure arising from impacts of the renminbi exchange rate movements on their customers. Empirical evidence also suggests that the average foreign exchange exposures of state-owned and joint-stock commercial banks in China are higher than those of banks in Hong Kong, notwithstanding their limited participation in international banking businesses compared with their Hong Kong counterparts. It is also found that negative foreign exchange exposure is prevalent for larger Chinese banks, suggesting that an appreciation of the renminbi tends to reduce their equity value. It is therefore likely that the banking sector's performance will be hampered. Together with the fact that decreases in equity values generally imply a higher default risk, the effects of different scenarios of renminbi appreciation on the default risk of Chinese banks should therefore be closely monitored.     

我国权证市场价格异象的行为金融分析

我国权证市场处于初级发展阶段,市场规模非常小,投资者心态和行为都不成熟,投机过度,出现了许多价格异象,如:基本面异象,技术面异象,日期异象,规模异象。这些"异常现象"传统金融理论所不能解释。行为金融学认为,投资者在进行投资决策时,由于有限理性、心理情绪等行为偏差和前景理论、心理账户、框定依赖等行为模式的影响,实际决策并非最优决策,导致金融市场上价格的变化偏离建立在传统金融理论假设基础上的结果,出现价格异象。文章通过总结我国权证市场这些价格异象的表现,分析了其行为金融学原因。     

Pricing of foreign exchange risk and market segmentation: Evidence from Pakistan's equity market

This paper undertakes empirical analysis to investigate whether foreign exchange rate risk is priced, and the extent to which the Pakistani equity market is integrated into world equity markets. For the period January 1993–January 2013, we investigate unconditional pricing using the iterated generalized method of moments, employing industry and size portfolios formed from 180 firms traded on the Karachi Stock Exchange. Using the multi beta asset pricing model, we find that exchange risk is priced into the Pakistani equity market over the full sample period. Moreover, we find strong evidence that the Pakistani equity market is segmented from world markets, especially in the post 9/11 period.     

牛、熊市状况下人民币汇率与股价关系分析

文章分析了2005年7月人民币汇率改革以后牛熊市下人民币汇率和股票价格的关系,本文发现,在牛市期间,汇率和股票指数在滞后一期上是互为Granger因果关系的,在其余的各滞后期,汇率都是股票指数的Granger原因,而股票指数都不是汇率变动的Granger原因。从两者的互相影响的关系上看,两者在一定程度上互相影响,但是汇率变化对股指变化的影响比股指变化对汇率变化的影响的程度要更深。而在熊市情况下,人民币汇率和股票指数之间不存在协整关系。     

浅析汇率波动下的外贸企业风险防范

自2005年7月21日我国汇率制度改革以来,人民币汇率已累计升幅超过7%。这使得我国出口产品的竞争力减弱,外贸企业的利润减少,抑制了出口积极性,同时也加大了外贸企业的外汇风险。因此,如何正确地认识外汇风险和较好地防范与化解外汇风险,如何保障企业的正常经营成果并赢得未来国际市场、进一步健康发展,是外贸企业一个亟待探讨和解决的问题。     

Foreign exchange market pressure and stock market dynamics in emerging Asia

International Economics and Economic Policy - This study investigates connections between currency and stock markets for the Asian emerging economies using a novel approach that considers exchange...     

可持续性发展与企业绿色营销

本文分析我国现行结售汇制的利弊 ,并对存在问题提出了建议。     

外汇干预的透明度问题——借鉴与启示

2008年以来,人民币升值加速,且波动频繁,对中央银行合理调控和有效干预人民币汇率形成严峻的挑战。本文回顾了关于干预透明度问题的理论研究,并详细介绍了国外中央银行提高干预政策透明度的具体实践,希望为中央银行改进外汇干预,增强外汇干预有效性提供一个新的思路。     

我国外汇储备高额增长的原因及对策分析

本文认为我国外汇储备的高额增长既有世界流动性过剩的外部原因,又有国内经济结构失衡导致国际收支顺差的内部原因,所以在治本之策短期内难以奏效的条件下,我们应加快我国外汇储备管理体制的改革,推动外汇资产持有主体的多元化,促进外汇储备的多渠道使用,来积极缓解我国外汇储备增长压力。     

An Investigation of the Value Relevance of Alternative Foreign Exchange Disclosures*

We demonstrate analytically and empirically that valuing a firm with foreign operations in the presence of exchange rate uncertainty requires information on the foreign operating cash flows disaggregated by currency and persistence. In particular, given consolidated earnings, investors need information on the exchange gain or loss on permanent foreign operating cash flows. We extend the model to show how the permanent foreign cash flows can be used to condition the change in the translation adjustment to make it value‐relevant; however, using the permanent foreign cash flows directly is superior for valuation purposes. The empirical tests support our hypothesis that the market response to exchange rate movements is sensitive to the relative magnitudes of revenues and costs denominated in each foreign currency in which a firm has transactions. Disclosure of cash flows by currency should enhance the valuation of firms with foreign operations.     

Chinese RMB exchange rate and local currency price stability in ASEAN trade

The article uses trade data between China and ASEAN countries to test hypotheses related to pricing to market (PTM) and consequent local currency price stability (LCPS). The degree of price discrimination associated with real RMB exchange rate changes between China and ASEAN + 2 shows evidence of local currency price stability in some industries in which exporters may be less competitive. China's trade policy may have also played a role in the local currency price stability. The article finds no evidence that RMB appreciation creates a larger impact on price adjustment than RMB depreciation.     

股改前后A股和H股价格发现的动态演化

本文选取A股、H股同时上市的公司股票价格数据为样本,采用Granger因果检验和信息份额模型,实证检验了股权分置改革前后A股、H股价格发现的动态演化过程。Granger因果检验表明,股改后H股更多地引导A股;信息份额模型显示,股改前,A股市场在股票价格的形成中占有一定的优势,股改后,H股市场在股票价格的形成中的优势逐渐明显。实证结果表明,股改后A股市场与成熟资本市场正逐步接轨,A股市场与H股市场的关联性得到进一步加强。     

Impacts of Foreign Exchange Auctions on the Informal Market Rate in Myanmar

Since the abolition of the official peg and the introduction of a managed float in April 2012, the Central Bank of Myanmar has operated the daily auctions of foreign exchange aimed at smoothing exchange rate fluctuations. Despite the reforms, however, informal trading of foreign exchange remains pervasive. Using the daily informal exchange rate and Central Bank auction data, this study examines the impacts of auctions on the informal rate. Generalized autoregressive conditional heteroskedasticity models indicate that the auctions did not reduce the conditional variance of the informal rate returns. Overall, the auctions have only a quite modest impact on the informal exchange rate.