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Dominant Invoicing Currency and Asymmetric Monetary Effects 主导计价货币与不对称货币效应
Zefeng Chen, Zhengyang Jiang, Timothy M. Mok
We show how the U.S. dollar as the dominant invoicing currency in international trade causes the U.S. monetary policy to have asymmetric monetary effects. We develop a model of two countries, U.S. and Japan. Households in both countries need to hold cash in advance to purchase consumption goods: The U.S. dollar can be used to purchase both countries' goods, while the Japanese yen can only be used to purchase Japan's goods. Under these constraints, an expansionary U.S. monetary policy leads to (1) a larger U.S. trade deficit, (2) larger foreign holdings of the U.S. dollar, and (3) an appreciation of the U.S. real exchange rate. In contrast, the Japanese monetary policy has none of these real effects. Beyond asymmetric monetary effects, our novel mechanism also explains the correlation between consumption and real exchange rate, and the connection between foreign economic growth and the demand for the U.S. dollar.
我们展示了美元作为国际贸易中主要的计价货币是如何导致美国货币政策产生不对称货币效应的。我们发展了美国和日本两个国家的模式。两国的家庭都需要提前持有现金来购买消费品:美元可以购买两国的商品,而日元只能购买日本的商品。在这些限制下,扩张性的美国货币政策导致(1)美国贸易逆差扩大,(2)外国持有美元增加,以及(3)美国实际汇率升值。相比之下,日本的货币政策没有这些实际效果。除了非对称货币效应,我们的新机制还解释了消费与实际汇率之间的关系,以及外国经济增长与美元需求之间的关系。
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引用次数: 0
Dominant Currency Paradigm: A New Model for Small Open Economies 主导货币范式:小型开放经济体的新模式
Pub Date : 2017-11-01 DOI: 10.5089/9781484330173.001.A001
C. Casas, Federico J. Díez, G. Gopinath, Pierre-Olivier Gourinchas
Most trade is invoiced in very few currencies. Despite this, the Mundell-Fleming benchmark and its variants focus on pricing in the producer’s currency or in local currency. We model instead a ‘dominant currency paradigm’ for small open economies characterized by three features: pricing in a dominant currency; pricing complementarities, and imported input use in production. Under this paradigm: (a) the terms-of-trade is stable; (b) dominant currency exchange rate pass-through into export and import prices is high regardless of destination or origin of goods; (c) exchange rate pass-through of non-dominant currencies is small; (d) expenditure switching occurs mostly via imports, driven by the dollar exchange rate while exports respond weakly, if at all; (e) strengthening of the dominant currency relative to non-dominant ones can negatively impact global trade; (f) optimal monetary policy targets deviations from the law of one price arising from dominant currency fluctuations, in addition to the inflation and output gap. Using data from Colombia we document strong support for the dominant currency paradigm.
大多数贸易都是用很少几种货币开具发票的。尽管如此,蒙代尔-弗莱明基准及其变体侧重于以生产国货币或当地货币进行定价。相反,我们为小型开放经济体建立了一个“主导货币范式”模型,其特征有三个:以主导货币定价;价格互补性,以及进口投入品在生产中的使用。在这种模式下:(a)贸易条件是稳定的;(b)无论货物的目的地或原产地如何,主导货币汇率传导到出口和进口价格都很高;(c)非主导货币的汇率传递较小;(d)支出转换主要通过进口发生,受美元汇率的驱动,而出口的反应很弱,如果有的话;(e)主导货币相对于非主导货币的加强可能对全球贸易产生负面影响;(f)除通货膨胀和产出缺口外,最优货币政策还针对主要货币波动造成的偏离单一价格规律的情况。使用哥伦比亚的数据,我们证明了对主导货币范式的有力支持。
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引用次数: 44
Evolution of Bitcoin - Volatility Comparisons with Least Developed Countries’ Currencies 比特币的演变——与最不发达国家货币的波动性比较
Dr. Jochen Kasper
Bitcoin volatility is known to be high, as is shown by comparing Bitcoin volatility to several currencies and to assets like stock, gold etc. This work attempts to extend this work by comparing Bitcoin volatility to volatility of currencies of least developed countries and other cryptocurrencies. Exchange rate and return data drawn from Bloomberg and covering March 2014 to March 2017 was analysed. It was found that Bitcoin volatility is still considerably higher than volatilities of currencies of least developed countries. Only five currencies were more volatile for more than 10% of the time span analysed.
众所周知,比特币的波动性很高,这可以通过将比特币的波动性与几种货币以及股票、黄金等资产进行比较来证明。这项工作试图通过将比特币的波动性与最不发达国家和其他加密货币的波动性进行比较来扩展这项工作。我们分析了彭博社2014年3月至2017年3月的汇率和回报数据。研究发现,比特币的波动性仍然远远高于最不发达国家货币的波动性。在分析的时间跨度中,只有五种货币的波动性超过10%。
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引用次数: 25
Bitcoin Average Dormancy: A Measure of Turnover and Trading Activity 比特币平均休眠:衡量交易量和交易活动
Reginald D. Smith
Attempts to accurately measure the monetary velocity or related properties of Bitcoin have often attempted to either directly apply definitions from traditional macroeconomic theory or to use specialized metrics relative to the properties of the Blockchain such as bitcoin-days destroyed. In this paper, it is demonstrated that beyond being a useful metric, bitcoin-days destroyed has mathematical properties that allow one to calculate the average dormancy (time since last use in a transaction) of the bitcoins used in transactions over a given time period. In addition, transaction volume and average dormancy are shown to have unexpected significance in helping estimate the average size of the pool of traded bitcoins by virtue of the expression Little's Law, though only under limited conditions.
准确测量比特币的货币流通速度或相关属性的尝试通常试图直接应用传统宏观经济理论的定义,或者使用与区块链属性相关的专门指标,如比特币-天销毁。在本文中,它证明了比特币销毁天数除了是一个有用的度量之外,还具有数学特性,允许人们计算给定时间段内交易中使用的比特币的平均休眠(自交易中最后一次使用以来的时间)。此外,交易量和平均休眠被证明在帮助估计比特币交易池的平均规模方面具有意想不到的意义,尽管只是在有限的条件下。
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引用次数: 2
Differential Risk Premiums and the UIP Puzzle 差异风险溢价和upp难题
Rita Biswas, Louis R. Piccotti, Ben Z. Schreiber
We jointly re-specify the relative purchasing power parity (RPPP) and uncovered interest rate parity (UIP) conditions as the (log) ratio of stochastic discount factors by inverting the market price of risk formula. Our empirical model provides new insights, which show that violations to UIP and RPPP both stem from the existence of a risk premium in exchange rates and from observed market return differentials being a noisy statistic of the markets' expected return differentials in our re-specified model. Using an integrated macro-microstructure framework for expected market return differentials improves our model fit and the validity of UIP and RPPP.
我们将相对购买力平价(RPPP)和未覆盖利率平价(UIP)条件重新指定为随机贴现因子的(log)比率,并将市场价格的风险公式进行反转。我们的经验模型提供了新的见解,它表明对UIP和RPPP的违反都源于汇率风险溢价的存在,以及在我们重新指定的模型中,观察到的市场回报差异是市场预期回报差异的噪声统计。使用综合宏观微观结构框架对预期市场收益差异进行分析,提高了模型的拟合性,提高了UIP和RPPP的有效性。
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引用次数: 2
A Statistical Analysis of Carry Trading 套息交易的统计分析
Siro Fritzmann, David Jaggi, Joerg Osterrieder
Carry trading is one of the most popular currency trading strategies. The aim of this paper is to apply and analyze the approach described in Baz et al. (2015) by utilizing the G10 currency cross rates and the 3-month Libor rates. The carry trading strategy is well documented and widely used by several types of market participants. In a first step, the strategy is tested with generated data based on the CHF/USD currency pair and the carry signal is being analyzed. In a second step, the strategy was applied to a basket of 45 currency pairs consisting of all the possible combinations between the G10 currencies. The outcome shows that carry trading can be protable if traded under the right market conditions, which are stable interest rates and an appreciation of the traded currency cross rate. The Deutsche Bank Currency Harvest Index, which is a similar implementation of a carry trading strategy outbids the approach by Baz et al. (2015) for the analyzed time period.
套息交易是最流行的货币交易策略之一。本文的目的是通过利用G10货币交叉利率和3个月Libor利率,应用和分析Baz等人(2015)中描述的方法。套息交易策略被多种类型的市场参与者充分记录并广泛使用。第一步,使用基于瑞郎/美元货币对生成的数据对策略进行测试,并对利差信号进行分析。第二步,将该策略应用于一篮子45对货币,包括十国集团(G10)货币之间所有可能的组合。结果表明,如果在合适的市场条件下进行套利交易,即稳定的利率和交易货币交叉汇率的升值,套利交易是有利可图的。德意志银行货币收获指数(Deutsche Bank Currency Harvest Index)是套息交易策略的类似实施,在分析的时间段内优于Baz等人(2015)的方法。
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引用次数: 0
The Special FX Market 特殊外汇市场
Louis Raffestin
We present a model of the foreign exchange market with 2 types of investors: cash-constrained carry traders, and short-sighed boundedly rational technical traders. We show that the interactions between both agents explain several of the well-documented puzzles of the exchange rate. In particular, the model provides a theoretical base for the fact that currencies of high interest rate countries tend to crash, sometimes without a clear fundamental trigger.
本文提出了一种外汇市场模型,其中包括两类投资者:现金拮据的套息交易者和短线有限理性的技术交易者。我们表明,这两个代理之间的相互作用解释了几个记录良好的汇率难题。特别是,该模型为高利率国家的货币往往会崩溃这一事实提供了理论基础,有时没有明确的基本面触发因素。
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引用次数: 0
Martingale Regressions for a Continuous Time Model of Exchange Rates 汇率连续时间模型的鞅回归
Zi‐Yi Guo
One of the daunting problems in international finance is the weak explanatory power of existing theories of the nominal exchange rates, the so-called “foreign exchange rate determination puzzle”. We propose a continuous-time model to study the impact of order flow on foreign exchange rates. The model is estimated by a newly developed econometric tool based on a time-change sampling from calendar to volatility time. The estimation results indicate that the effect of order flow on exchange rates is more than doubled compared with the traditional econometric estimations. The normality tests of the distribution of regression residuals confirm our application of the new econometric tool.
国际金融中一个令人生畏的问题是,现有名义汇率理论的解释力很弱,即所谓的“汇率决定之谜”。我们提出一个连续时间模型来研究订单流对外汇汇率的影响。模型的估计是由一个新开发的计量工具基于时间变化抽样从日历到波动时间。估计结果表明,与传统的计量经济学估计相比,订单流对汇率的影响增加了一倍以上。回归残差分布的正态性检验证实了新计量工具的应用。
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引用次数: 1
The Exchange Rate Effects of Macro News after the Global Financial Crisis 全球金融危机后宏观新闻对汇率的影响
Yin-Wong Cheung, Rasmus Fatum, Yohei Yamamoto
This paper explores whether the exchange rate effects of macro news are time- and state-dependent by analyzing and comparing the relative influence of US and Japanese macro news on the JPY/USD rate before, during, and after the Global Financial Crisis. A comprehensive set totaling 40 time-stamped US and Japanese news variables and preceding survey expectations along with 5-minute indicative JPY/USD quotes spanning the 1 January 1999 to 31 August 2016 period facilitate our analysis. Our results suggest that while US macro news are now more important than before the Crisis, the influence of Japanese macro news has waned to the point of near-irrelevance. These findings are of particular importance to exchange rate modeling of the New Era.
本文通过分析和比较美国和日本宏观新闻在全球金融危机之前、期间和之后对日元/美元汇率的相对影响,探讨宏观新闻的汇率效应是否具有时间和状态依赖性。从1999年1月1日至2016年8月31日期间的5分钟日元/美元指示性报价中,我们综合了40个带有时间戳的美国和日本新闻变量和之前的调查预期,便于我们进行分析。我们的研究结果表明,虽然美国宏观新闻现在比危机前更重要,但日本宏观新闻的影响力已经减弱到几乎无关紧要的地步。这些发现对新时期的汇率建模具有特别重要的意义。
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引用次数: 26
Forecasting Foreign Exchange Rate Movements with k-Nearest-Neighbour, Ridge Regression and Feed-Forward Neural Networks 用k-近邻、岭回归和前馈神经网络预测汇率变动
Milan Fičura
Three different classes of data mining methods (k-Nearest Neighbour, Ridge Regression and Multilayer Perceptron Feed-Forward Neural Networks) are applied for the purpose of quantitative trading on 10 simulated time series, as well as real world time series of 10 currency exchange rates ranging from 1.11.1999 to 12.6.2015. Each method is tested in multiple variants. The k-NN algorithm is applied alternatively with the Euclidian, Manhattan, Mahalanobis and Maximum distance function. The Ridge Regression is applied as Linear and Quadratic, and the Feed-Forward Neural Network is applied with either 1, 2 or 3 hidden layers. In addition to that Principal Component Analysis (PCA) is eventually applied for the dimensionality reduction of the predictor set and the meta-parameters of the methods are optimized on the validation sample. In the simulation study a Stochastic-Volatility Jump-Diffusion model, extended alternatively with 10 different non-linear conditional mean patterns, is used, to simulate the asset price behaviour to which the tested methods are applied. The results show that no single method was able to profit on all of the non-linear patterns in the simulated time series, but instead different methods worked well for different patterns. Alternatively, past price movements and past returns were used as predictors. In the case when the past price movements were used, quadratic ridge regression achieved the most robust results, followed by some of the k-NN methods. In the case when past returns were used, k-NN based methods were the most consistently profitable, followed by the linear ridge regression and quadratic ridge regression. Neural networks, while being able to profit on some of the time series, did not achieve profit on most of the others. No evidence was further found of the PCA method to improve the results of the tested methods in a systematic way. In the second part of the study, the models were applied to empirical foreign exchange rate time series. Overall the profitability of the methods was rather low, with most of them ending with a loss on most of the currencies. The most profitable currency was EURUSD, followed by EURJPY, GBPJPY and EURGBP. The most successful methods were the linear ridge regression and the Manhattan distance based k-NN method which both ended with profits for most of the time series (unlike the other methods). Finally, a forward selection procedure using the linear ridge regression was applied to extend the original predictor set with some technical indicators. The selection procedure achieved limited success in improving the out-sample results for the linear ridge regression model but not the other models.
三种不同类型的数据挖掘方法(k-Nearest Neighbour, Ridge Regression和Multilayer Perceptron前馈神经网络)应用于10个模拟时间序列的定量交易,以及从1999年11月1日到2015年6月12日的10种货币汇率的真实世界时间序列。每种方法都在多个变体中进行了测试。k-NN算法与欧几里得、曼哈顿、马哈拉诺比和最大距离函数交替应用。Ridge回归被应用为线性和二次回归,前馈神经网络被应用为1、2或3个隐藏层。此外,最终应用主成分分析(PCA)对预测集进行降维,并在验证样本上优化方法的元参数。在模拟研究中,使用随机-波动跳跃-扩散模型,扩展为10种不同的非线性条件平均模式,以模拟所测试方法应用的资产价格行为。结果表明,没有一种方法能够从模拟时间序列的所有非线性模式中获利,而是不同的方法对不同的模式有很好的效果。或者,过去的价格变动和过去的回报被用作预测指标。在使用过去价格变动的情况下,二次岭回归获得了最稳健的结果,其次是一些k-NN方法。在使用过去收益的情况下,基于k-NN的方法是最持续盈利的,其次是线性脊回归和二次脊回归。神经网络虽然能够在某些时间序列上获利,但在其他大多数时间序列上却没有盈利。没有进一步的证据表明主成分分析方法可以系统地改善测试方法的结果。在研究的第二部分,将模型应用于实证汇率时间序列。总的来说,这些方法的盈利能力相当低,其中大多数方法以大多数货币的亏损告终。最赚钱的货币是欧元美元,其次是欧元日元、英镑日元和欧元英镑。最成功的方法是线性脊回归和基于曼哈顿距离的k-NN方法,这两种方法对大多数时间序列都是有利的(与其他方法不同)。最后,应用线性脊回归的正向选择程序,用一些技术指标扩展原始预测集。选择过程在改善线性岭回归模型的外样本结果方面取得了有限的成功,而其他模型则没有。
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引用次数: 3
期刊
Econometric Modeling: International Financial Markets - Foreign Exchange eJournal
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