Mr Paulson and other top US officials, including President George W. Bush, have become increasingly vocal on the dollar in recent days in an apparent effort to signal that they are not indifferent to its fate.

The yen yesterday hit a two-and-a-half year high against the dollar as Toshihiko Fukui, governor of the Bank of Japan, expressed strong concern about the turbulence in world markets, comparing it with "a serious disease".

日元兑美元汇率昨日创下两年半以来的最高水平，原因是日本央行（boj）行长福井俊彦（toshihiko fukui）表达了对全球市场动荡的强烈担忧，并把这种动荡比作“一场大病”。

In this paper, we examine time series features of RMB/ US dollar exchange rate, using Cycle-ARMA model and CAR model for short-time exchange rate forecasting.

通过对汇改后人民币对美元汇率的波动情况进行分析，采用周期-ARMA模型和多变量的CAR模型，对人民币汇率进行短期预测。

There followed the Louvre Accord in February 1987, which was intended to stabilise a dollar that threatened to go into free fall.

之后，卢浮宫协议（Louvre Accord）在1987年2月签署，目标是稳定住美元汇率，当时美元有可能直线下跌。

The empirical study show that there does exist a cointegration relationship between the REER and the selected two fundamentals comprising Difference of CPIs ( DFCPI) and US Dollar Index ( USDI).

实证分析得出，物价指数差（DFCPI）和美元汇率指数（USDI）两个基础变量与人民币实际有效汇率（REER）之间存在协整关系，模型可决系数R平方值为0.93。

It is particularly timely given that US Federal Reserve officials have this week signalled plans to tighten monetary policy next year – which has, in turn, pushed the dollar to a 17-month high, since higher rates will make US assets more attractive.

鉴于美联储（Fed）官员最近表示计划于明年收紧货币政策，这一课上得尤其及时。美联储发出的信号把美元汇率推高至17个月高点，因为加息将使美国资产更具吸引力。

The FTSE All-World index was up 0.8 per cent following gains across Europe and Asia, while US Treasuries and the dollar slipped.

随着欧洲和亚洲股市普遍上涨，富时环球指数（FTSE all-World Index）上涨了0.8%，而美国国债价格和美元汇率有所下跌。

Moody's has cut Japan's credit rating one notch to A1 – only the fifth-best investment grade-sending the yen to a new seven year low against the dollar.

穆迪（Moody's）将日本的信用评级下调一级，降至A1级，这一级别在投资级评级里只排第五。此举令日元兑美元汇率跌至新的七年内最低点。

Bangkok's benchmark Stock Exchange of Thailand Index has fallen 8.5% since the protests began two months ago, while the Thai baht has fallen to a three-year low versus the dollar.

自两个月前抗议活动开始以来，曼谷基准的泰国证交指数（Stock Exchange of Thailand Index）已累计下跌8.5%，泰铢兑美元汇率跌至三年低点。

Elsewhere, pressure on the Reserve Bank of India has not eased despite an 11 per cent rise in the rupee so far this year against the dollar and several attempts at restricting capital inflows.

其他方面，尽管今年迄今为止印度卢比兑美元汇率已累计升值11%，加之政府数次试图限制资本流入，但印度央行（reserve bank of india）所面临的压力并未减轻。

Forecast and Fit for Exchange Rate of Yen against Dollar Using GARCH Model

运用GARCH模型对日元兑美元汇率序列的拟合与预测

The turn in the euro/ dollar bellwether currency pair will have little to do with valuations and more to do with signals on interest rates from the Federal Reserve and the European Central Bank.

作为领头羊的欧元兑美元汇率反转，与估值的关系不大，更多地是与美联储（fed）和欧洲央行（ecb）发出的利率信号有关。

Exchange Rate of US Dollar, Inflation and Oil Price

美元汇率、通货膨胀与油价

Since November 14, when Yoshihiko Noda called a general election, the yen has fallen 14 per cent against the dollar and the Topix has rallied by 30 per cent.

自去年11月14日野田佳彦（Yoshihiko Noda）宣布举行大选以来，日元兑美元汇率已下跌14%，Topix上扬30%。

But it also reflects a rally in the dollar that has gained momentum in recent weeks as the US Federal Reserve nears the end of its quantitative easing programme and investors look to the prospect of US interest rates rising in 2015.

不过，欧元兑美元汇率下跌还反映出了美元的回升，后者近几周来表现强劲&美联储（Fed）的量化宽松计划即将告终，投资者则在关注美国在2015年加息的前景。

But after the R/ S analysis test we found the noise of our exchange market is too small which means that market isn't efficient according to the behavioral finance theory.

然而在用R／S分析法对人民币对美元汇率进行分析之后我们发现：中国外汇市场噪声缺乏，根据行为金融理论的观点，我国外汇市场效率低下。

Research on the Garch Model Based on Ant Colony Algorithm in the Forecast of the Rmb-Usd Exchange Rate

基于蚁群算法的GARCH模型的人民币&美元汇率预测研究

The Hong Kong Monetary Authority was forced to step into the currency markets again yesterday as the Hong Kong dollar hit the limit of its trading band against its US counterpart.

香港金融管理局（HKMA）昨日被迫再度干预汇市，原因是港元兑美元汇率触及交易区间的上限。

The data suggested that the Federal Reserve may not be so keen to cut US interest rates aggressively, and the dollar rallied a factor that should weaken commodity markets.

上述数据显示，美联储（fed）可能不会那么热衷于大幅降息，同时美元汇率有所反弹，这一因素应该会导致大宗商品市场走弱。

The yen touched a three-month low of y97 against the dollar.

日元兑美元汇率触及1美元兑97日元的3个月低点。

At one point the rouble hit a record low of 53.86 to the dollar-a move of 6.5 per cent, according to Reuters data-though it later pared some of its losses.

根据路透（Reuters）数据，卢布兑美元汇率一度触及1美元兑53.86卢布的创纪录低点，跌幅达6.5%，尽管随后收复了部分失地。