Forecasting exchange rates with commodity prices—a global country analysis

This paper investigates the predictive properties of import and export prices of commodities on the exchange rates. A period from 1993 to 2016 is considered. We find that forecasts of the exchange rate adding commodity export and import prices are superior to those neglecting these variables. This holds irrespective of whether the countries are net exporters or importers of commodities. However, the forecasting power was even better in the 1990s and seems to have decreased since that that time. Nevertheless, forecasts can even today be improved considerably by adding commodity prices.     

石油净进口大国利率与油价对净出口的影响

传统贸易理论在研究影响一国净出口因素时只考虑了汇率和收入水平,本文在此基础上加入了利率和油价因素,并以美、中、日三个石油净进口大国为例进行了实证分析,结果表明利率上升减少投资需求,降低国内物价水平,增强出口商品价格竞争力,使出口增加,进口减少;油价上涨,石油进口支出增加,一国进口总额增加。实证和理论分析结果基本相符,即净出口与利率呈正向关系,与油价呈负向关系。     

The macroeconomic effects of commodity market disruptions in open economies

This paper analyzes the macroeconomic effects of two of the principal causes of the commodity price boom in 1973-74: bad harvests and commodity speculation. The analysis uses a dynamic, fixprice-flexprice model in which exchange rates are flexible and commodities serve as both an asset and a consumption good. Commodity market disruptions of the magnitude that occurred in 1973-74 are shown to have significant effects on prices, exchange rates, trade flows, and capital flows — effects that persist long after the initial shock has passed. Asset markets, defined to include commodity markets, play a central role in transmitting these shocks throughout the world economy.     

Does Euro or Dollar Pegging Impact the Real Exchange Rate? The Case of Oil and Commodity Currencies

The aim of this paper is to investigate the equilibrium exchange rates for commodity and oil currencies as well as the discrepancies of their observed exchange rates to these equilibriums. To this end, first, we estimate a long‐term relationship between the real effective exchange rate and economic fundamentals, including the commodity terms of trade. The estimation relies on panel cointegration techniques and covers annual data from 1980 to 2007. Our results show that real exchange rates co‐move with commodity prices in the long run and respond to oil price somewhat less than to commodity prices. Second, we assess the degree of misalignment of these currencies, as the gap between their observed exchange rate and the estimated equilibrium exchange rate. We show that these misalignments are not significantly related to the exchange rate regimes adopted by the countries, either pegged or floating. However, for pegged currencies, the size of misalignments significantly depends on the anchor currency, either the euro or the dollar. A comparison of misalignments of pegged commodity and oil currencies across different periods confirms these results: during periods of dollar (euro) overvaluation, currencies pegged to the dollar (euro) tend to be overvalued; the reverse being true when the dollar (euro) is undervalued. Consequently, pegged currencies are often driven away from their equilibria by wild fluctuations in the key currencies, on which they are anchored.     

Measuring the effect of the zero lower bound on yields and exchange rates in the U.K. and Germany

The zero lower bound on nominal interest rates began to constrain many central banks' setting of short-term interest rates in late 2008 or early 2009. According to standard macroeconomic models, this should have greatly reduced the effectiveness of monetary policy and increased the efficacy of fiscal policy. However, these models also imply that asset prices and private-sector decisions depend on the entire path of expected future short-term interest rates, not just the current level of the monetary policy rate. Thus, interest rates with a year or more to maturity are arguably more relevant for asset prices and the economy, and it is unclear to what extent those yields have been affected by the zero lower bound. In this paper, we apply the methods of Swanson and Williams (2013) to medium- and longer-term yields and exchange rates in the U.K. and Germany. In particular, we compare the sensitivity of these rates to macroeconomic news during periods when short-term interest rates were very low to that during normal times. We find that: 1) USD/GBP and USD/EUR exchange rates have been essentially unaffected by the zero lower bound, 2) yields on German bunds were essentially unconstrained by the zero bound until late 2012, and 3) yields on U.K. gilts were substantially constrained by the zero lower bound in 2009 and 2012, but were surprisingly responsive to news in 2010–11. We compare these findings to the U.S. and discuss their broader implications.     

Exchange market pressure,commodity prices,and contagion in Latin America

Over the past two decades, Latin American currencies have faced not only pressure to devalue but also periods of uncomfortable appreciation. Domestic macroeconomic factors, as well as global events and contagion, might bear part of the responsibility. This study constructs a monthly index of exchange market pressure (EMP) for four Latin American countries before using vector autoregressive methods to test the influence of commodity prices, macroeconomic variables, and external factors on each country's index. While inflation is an important determinant of EMP, we conclude that Chile and Peru are more likely than Mexico and Brazil to face pressure when commodity prices fall. This supports the idea that these two countries have “commodity currencies” and that their exchange markets are most vulnerable to international contagion.     

Impact of commodity prices on exchange rates in commodity-exporting countries

This paper studies the link between real exchange rates and commodity prices, over the period 1993M1–2018M12, for commodity-exporting countries by analysing countries individually and considering the possibility of structural breaks. Our results suggest that: (a) the movements in the price of the main commodity (i.e., the one whose share is at least 20% of total commodity export) affect significantly to the real exchange rate; (b) the sign of the effect of commodity prices on real exchange rate is not clearly positive (as was found by earlier analyses using panel data), but it depends on the country considered; and (c) the negative effects of the possession of natural resources observed in the past decades seem not to be now overwhelming.     

Asset storability and price discovery in commodity futures markets: A new look

This article examines the price discovery performance of futures markets for storable and nonstorable commodities in the long run, allowing for the compounding factor of stochastic interest rates. The evidence shows that asset storability does not affect the existence of cointegration between cash and futures prices and the usefulness of future markets in predicting future cash prices. However, it may affect the magnitude of bias of futures markets’ estimates (or predictions) for future cash prices. These findings have several important implications for commodity production decision making, commodity hedging, and commodity price forecasting. © 2001 John Wiley & Sons, Inc. Jrl Fut Mark 21:279–300, 2001     

Impacts of short-term interest rates on stock returns and exchange rates: Empirical evidence from EAGLE countries

In this study, we estimate Bayesian vector autoregression (BVAR) and time-varying structural VAR (TVP-VAR) models for Brazil, Indonesia, Mexico and Turkey to analyze the impacts of short-term interest rates on stock prices and exchange rates considering the relationships between these variables. BVAR and TVP-VAR models’ estimations indicate that monetary policy decisions of these countries lead to capital movements as well as capital movements may create a considerable amount of variation in exchange and stock markets both in the periods of economic stability and financial crisis. We also reveal that increases in interest rates intending to prevent capital outflows may lead to decrease in stock returns, which in turn may deteriorate the real economic activity in Indonesia, while changes in short-term interest rates in Brazil, Indonesia and Turkey cannot be used as a tool to stabilize the value of their home currencies against the USD. Our study highlights the importance of formulating an optimal monetary policy framework accompanied by macro-prudential polices, which help to reach inflation target and smooth the possible variations in exchange rates and stock prices during economic crisis conditions in Brazil, Indonesia, Mexico and Turkey.     

Exchange rates and prices: Evidence from China

This article develops a pricing model that incorporates an industrial organization approach with the traditional quantity theory of money to explain the impact of exchange rates on consumer prices. Using time-series data on prices and exchange rates of China, the model replicates the main features of the observed facts: exchange rates influence consumer prices through changing import prices; money supply and output influence consumer prices following the quantity theory. The estimating results show that exchange-rate pass-through to consumer prices is low and increases from the short run to the long run. The extent of pass-through is likely to depend on markup adjustment and marginal costs.     

金融危机背景下汇市与股市关系实证研究

本文建立了由上证综指、汇率、利率与道·琼斯指数构成的多变量VAR模型,运用Granger因果检验、脉冲响应函数与方差分解技术分析了金融危机背景下外汇市场与股票市场关系.实证分析结果表明:我国金融市场上汇率变动对股票价格有明显的短期作用,而股票价格变动对汇率没有影响;美国股市波动对我国股市的短期冲击超过人民币汇率对股市的冲击;我国的利率调整对汇率有短期效应,但对股票价格无影响.     

Approximation for convenience yield in commodity futures pricing

The pricing of commodity futures contracts is important both for professionals and academics. It is often argued that futures prices include a convenience yield, and this article uses a simple trading strategy to approximate the impact of convenience yields. The approximation requires only three variables—underlying asset price volatility, futures contract price volatility, and the futures contract time to maturity. The approximation is tested using spot and futures prices from the London Metals Exchange contracts for copper, lead, and zinc with quarterly observations drawn from a 25‐year period from 1975 to 2000. Matching Euro‐Market interest rates are used to estimate the risk‐free rate. The convenience yield approximation is both statistically and economically important in explaining variation between the futures price and the spot price after adjustment for interest rates. © 2002 Wiley Periodicals, Inc. Jrl Fut Mark 22:1005–1017, 2002     

Purchasing power parity and exchange rates: Another look at the evidence

This paper examines some of the evidence on the relationship between prices and exchange rates, looking at data from the 1920s and the 1970s. Simple regression tests lead us to reject the hypothesis of purchasing power parity. These tests are, however, inappropriate when, as is usually the case, neither prices nor the exchange rate may be taken as exogenous. Tests which recognize the endogeneity of both prices and exchange rates give results considerably more favorable to purchasing power parity. Tests which recognize the endogeneity of both prices and exchange rates give results which, while not definitive, are more favorable to the purchasing power parity hypothesis.     

Some empirical evidence on commodity arbitrage and the law of one price

This paper draws three conclusions from a regression study of disaggregated commodity arbitrage between the U.S. and Canada: (1) Inability to detect commodity arbitrage characterizes a majority of commodity classes, which can potentially be described as nontradeables. (2) Commodity arbitrage is never perfect. (3) When commodity arbitrage is detected, Canadian prices invariably respond as much or more to the exchange rate as they do to U.S. prices.     

A disequilibrium analysis of the monetary trade model

This paper examines the monetary approach to the balance of payments under fixed exchange rates when domestic prices and wage rates are not fully flexible. This leads to a formulation in the spirit of a ‘disequilibrium analysis’. We analyze alternatively the cases where the prices of nontraded goods or the nominal wage rate are treated as state variables along with the stock of money. The properties of these systems are analyzed from the point of view of the momentary equilibrium and of the dynamic adjustment process.     

正确处理经济增长、调整结构与稳定物价的关系

经济增长、调整结构和稳定物价既相互联系,又互相影响。当前我国经济发展总体情况良好,但仍面临着经济增长速度有所回落、经济结构失衡突出、稳定物价存在不确定性等挑战。要解决经济发展中不平衡、不协调、不可持续的矛盾,增强经济发展的平稳性、协调性和可持续性,必须正确处理好经济增长、调整结构和稳定物价的关系,在保增长、调结构和稳物价之间找到"平衡点"。     

人民币利率对汇率影响的实证研究：1981—2003

定量分析人民币利率对汇率长期走势与短期波动的影响,对于中国利率市场化与汇率制度选择等问题意义重大.对时间序列变量进行单位根检验、协整检验,以及建立误差修正模型等实证研究表明:无论在长期还是短期,人民币利率对汇率都是反向影响.长期内,利率对人民币汇率存在较强的影响;短期内,利率对人民币汇率影响较弱.我国利率主要还是通过商品市场间接地对汇率产生作用.     

Migration of price discovery in semiregulated derivatives markets

This study investigates the information content of futures option prices when the underlying futures price is regulated and the futures option price is not. The New York Board of Trade (NYBOT) provides the empirical setting for this regulatory mismatch. Many commodity derivatives markets regulate the prices of all derivatives on a single underlying commodity simultaneously. Some exchanges, including the NYBOT, regulate only their futures contracts, leaving the options on these futures contracts unregulated. This study takes a particular interest in the option‐implied futures price when the observed futures price is locked limit. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:209–241, 2006     

Commodity Markets and Commodity Mutual Funds

Fundamental economic factors—market demand and supply conditions—provide the most consistent explanation for trends in commodity prices from 2004 to 2011. This paper presents empirical evidence that the rise and fall of commodity prices on a monthly basis can be strongly linked to the value of the U.S. dollar and the world business cycle—in particular, to the strength or weakness in emerging market economies such as China, Brazil, India, and Russia. Despite concerns raised by some policymakers that increased commodity index investment (the financialization of commodities) has driven commodity price movements, numerous academic studies have concluded that index-based investing has not moved prices or exacerbated volatility in commodity markets in recent years. An examination of weekly and monthly net flows into commodity mutual funds reveals that these flows have little or no effect on the overall growth rate of commodity prices. In particular, weekly flows into commodity mutual funds do not lead to future commodity price changes. These results are consistent with academic papers that find little or no impact of commodity index investors on commodity prices in individual markets. The paper concludes by briefly discussing three key factors that illustrate why flows into commodity mutual funds cannot explain commodity price movements.     

An asymmetric analysis of the J‐curve effect in the commodity trade between China and the US

This paper follows a non‐linear ARDL error‐correction approach to examine the presence of the J‐curve in the commodity‐level trade between the United States and China. The analysis disaggregates the US–China trade flows by commodities and separately examines the trade balance responses of 97 commodities to the changes in the real yuan–US$ exchange rates. The analysis at the commodity level alleviates potential aggregation bias that is present in earlier studies offering little evidence for long‐run asymmetric effects of exchange rate on the China–US trade balance. We find strong support for short‐run asymmetric effects in the case of two‐third of the commodities, whereas significant long‐run asymmetric effects are present in the case of one‐third of the commodities including those commodities which command large shares in the China–US trade.