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Time Variations In Commodity Price Jumps
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Book Synopsis Time-Variations in Commodity Price Jumps by : Laszlo Diewald
Download or read book Time-Variations in Commodity Price Jumps written by Laszlo Diewald and published by . This book was released on 2019 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, we study jumps in commodity prices. Unlike assumed in existing models of commodity price dynamics, a simple analysis of the data reveals that the probability of tail events is not constant but depends on the time of the year, i.e. exhibits seasonality. We propose a stochastic volatility jump-diffusion model to capture this seasonal variation. Applying the Markov Chain Monte Carlo (MCMC) methodology, we estimate our model using 20 years of futures data from four different commodity markets. We find strong statistical evidence to suggest that our model with seasonal jump intensity outperforms models featuring a constant jump intensity. To demonstrate the practical relevance of our findings, we show that our model typically improves Value-at-Risk (VaR) forecasts.
Book Synopsis Commodity Price Dynamics by : Jiachuan Tian
Download or read book Commodity Price Dynamics written by Jiachuan Tian and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The variation of energy prices has been a traditional source of shocks to the real economy. In many cases, this variation has manifested in jumps in energy prices that were characterized by some persistence. From another perspective, energy price volatility has historically been noted and its effects on real economy debated. Historically, the importance of the shocks to the real economy has led them to be labeled as energy crises, as they were argued to have resulted in substantial changes in real prices that induced changes in behavior on the demand and supply sides of the many markets. The first chapter re-examines evidence of such a linkage by considering the transmission of energy prices into soft commodity prices. This nexus lies within the core of any real effects as softs include food-related commodities. The paper contributes to the literature by re-examining this linkage with a close eye on the role played by structural breaks within a time series and by considering the question of causality within a nonlinear framework. We find that functional form is a critical specification that conditions inference. Using linear forms, we find no cointegration between energy and food in the full sample under the maintained hypothesis that there are no structural breaks. Using linear nonparametric methods, we examine the series for structural breaks and find evidence of their importance. Based on subdivisions of the sample period as suggested by the structural break examination, within the structural break intervals identified we find evidence of cointegration. We next reconsider the issue within the context of nonlinear functional forms posing the question of whether evidence of structural breaks based on linear methods follow from underlying nonlinearity. Our results confirm the importance of functional form specification and we find evidence of nonlinear causality between energy and soft commodity prices. Empirical studies of transmission of energy prices into the real economy have been challenged by a number of significant specification issues that have resulted in substantial variation in inference drawn from results. Among these issues is the question of completeness of model specification. Chapter 2 examines the question of whether such models need to incorporate macroeconomic indicators. Clearly, macroeconomic factors such as interest rates and exchange rates play a role in the determination of energy and commodity prices, however, considerable specification uncertainty characterizes the question of which macro metrics to incorporate. We examine this issue from the perspective of weak exogeneity and find evidence that the parameter estimates associated with time series models that exclude consideration of macro indicators are not compromised by their exclusion. We examine this issue using Italian, U.S. grain, and Brent crude oil prices. While structural break, threshold and asymmetric cointegration models can allow us to characterize the linear and nonlinear dynamics in price transmission in level,it is of equal interest to differentiate across the type of price change to consider what might be thought of as typical price changes versus extreme price changes associated with either temporary structural change or mean reverting change as in what we call price jumps. In particular, while a structural break is a permanent and long-run structural shift in DGM, a jump in a series represents a sudden temporary change in the pattern of the observations generated. Such change is temporary in a sense that its effect usually diminishes rather quickly (usually in relatively few periods). That means, intuitively, in relatively short time span after a jump, the price series will revert to its mean or its long-run smooth pattern which we call the trend of the series. In Chapter 3, we present a detailed discussion of the proper representation of such price jumps and show that there are price jumps in the real-world economic price series. The last chapter is concerned with the micro-structure specification to identify origins of price jumps that can not be generally characterized by the competitive market models. In particular we propose a rather general model of procurement process where imperfectly informed buyers search for and place bids to suppliers to fulfill procurement demand. We show that in this process, search cost, market structure and market condition are crucial factors in generating price jumps. Later in the simulation part we show that the model proposed in this paper can generate jumps that resemble those in the observed economic price series. We also integrate buyers risk aversion in market conditions (though they are risk neutral in payoffs) through their personal belief and search costs. We show that buyers risk aversion increases their sensitivity to market conditions,which exaggerates price movements with presence of supply shocks.
Book Synopsis Commodity Prices and Markets by : Takatoshi Ito
Download or read book Commodity Prices and Markets written by Takatoshi Ito and published by University of Chicago Press. This book was released on 2011-03 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluctuations of commodity prices, most notably of oil, capture considerable attention and have been tied to important economic effects. This book advances our understanding of the consequences of these fluctuations, providing both general analysis and a particular focus on the countries of the Pacific Rim.
Book Synopsis Recent food prices movements by : Bryce Cooke
Download or read book Recent food prices movements written by Bryce Cooke and published by Intl Food Policy Res Inst. This book was released on with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: From 2006 to mid-2008 the international prices of agricultural commodities increased considerably, by a factor larger than two. This upward trend in agricultural prices captured the world's attention as a new food crisis was emerging. Several explanations for these movements in prices, ranging from demand-driven forces to supply shocks, have been provided by analysts, researchers, and development institutions. This paper is an attempt to empirically validate these explanations using time series econometrics and data at monthly frequency. We focus on the international price of corn, wheat, rice, and soybeans. First, we identify variables associated with the factors mentioned as causing the increase in these agricultural commodities prices. Second, we use time series analysis to try to quantitatively validate those explanations. The empirical work presented here includes first difference models and rolling Granger causality tests. Overall, our empirical analysis mainly provides evidence that financial activity in futures markets and proxies for speculation can help explain the observed change in food prices; any other explanation is not well supported by our time series analysis.
Book Synopsis Theory of Markets by : Bertrand M. Roehner
Download or read book Theory of Markets written by Bertrand M. Roehner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Book titles, because they are compromises between concision and precision, provide but an approximate description of real content. For this book an al ternative and more comprehensive title would be: An investigation of spatial arbitrage as an introduction to the theory of commodity markets: trade and space-time patterns of price fluctuations. In this title, both the specificities and the limitations of our approach are emphasized. Firstly, our approach con centrates on the basic mechanisms of spatial arbitrage, leaving aside a number of accessory facets of international trade such as the impact of quotas or of ex change rates. Secondly, for the sake of simplicity we restrict ourselves to single commodity markets; the interrelationship of different goods on multi-commodity markets are only occasionally mentioned. The previous restrictions, however drastic they may at first appear delimit and define what can be considered as the core of the process of trade and of spatial transactions. Having thus simplified the object of our study, we are able to tackle the problem in a systematic way and to model spatial differentials along with their relationships to the volume of trade both in eqUilibrium and in non-equilibrium situations. As far as the subtitle of the book is concerned, we shall postpone the discussion of what is meant by the expression "analytical economics" until the concluding chapter.
Book Synopsis Commodity Prices As a Leading Indicator of Inflation by : International Monetary Fund
Download or read book Commodity Prices As a Leading Indicator of Inflation written by International Monetary Fund and published by International Monetary Fund. This book was released on 1988-10-03 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commodity prices may be a leading indicator of inflation, because of the relative importance of flexible auction markets for the determination of these prices. Empirical tests using data for the large industrial countries as a group suggest that changes in commodity prices tend to lead those in consumer prices, and that the inclusion of commodity prices significantly improves the fit of regressions of a multi-country consumer price index. However, there does not appear to be a reliable long-run relationship between the level of commodity prices and the level of consumer prices.
Book Synopsis Commodity Prices and Inflation by : James M. Boughton
Download or read book Commodity Prices and Inflation written by James M. Boughton and published by . This book was released on 1989 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper examines the relationships between movements in primary commodity prices and changes in inflation in the large industrial countries. It begins by developing a two-country model in order to examine the theoretical effects of monetary, fiscal, and supply-side disturbances on commodity and manufactures prices and on exchange rates. It is shown that if monetary shocks dominate, then commodity prices should lead general price movements, and the level of commodity prices should be correlated with the general inflation rate. Non-monetary shocks generally weaken these relationships, but such disturbances may cancel out for broad indexes covering a wide range of commodities. Country-specific commodity price indexes are developed for the major industrial countries. The weights assigned to different commodities vary substantially across countries. Nonetheless, when the indexes are expressed in a common currency, they tend to be highly correlated over time, except when sharp movements occur in certain commodity prices. The major source of contrast across countries in the behavior of the indexes derives from exchange rate movements. Several empirical tests broadly support the conclusions of the theoretical model, with relatively few differences across countries. Three main tendencies may be cited. First, low inflation in industrial countries has tended to be associated with low levels of commodity prices, and conversely; commodity-price levels are cointegrated with consumer-price inflation rates. Second, there has been some tendency for movements in commodity prices to precede changes in general inflation rates by a few months, although it is not clear whether this tendency is strong enough to be a reliable aid in forecasting the rate of inflation. Third, there s a strong and fairly reliable tendency for turning points in general inflation rates. Commodity prices thus appear to contribute to predictions of turning points in inflation, predictions of inflation rates but more strongly to predictions of turning points in inflation.
Book Synopsis The Comovement in Commodity Prices by : Mr.Ron Alquist
Download or read book The Comovement in Commodity Prices written by Mr.Ron Alquist and published by International Monetary Fund. This book was released on 2013-06-05 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a simple macroeconomic model with a continuum of primary commodities used in the production of the final good, such that the real prices of commodities have a factor structure. One factor captures the combined contribution of all aggregate shocks which have no direct effects on commodity markets other than through general equilibrium effects on output, while other factors represent direct commodity shocks. Thus, the factor structure provides a decomposition of underlying structural shocks. The theory also provides guidance on how empirical factors can be rotated to identify the structural factors. We apply factor analysis and the identification conditions implied by the model to a cross-section of real non-energy commodity prices. The theoretical restrictions implied by the model are consistent with the data and thus yield a structural interpretation of the common factors in commodity prices. The analysis suggests that commodity-related shocks have generally played a limited role in global business cycle fluctuations.
Book Synopsis Co-movement of major commodity price returns: A time-series assessment by : de Nicola, Francesca
Download or read book Co-movement of major commodity price returns: A time-series assessment written by de Nicola, Francesca and published by Intl Food Policy Res Inst. This book was released on 2014-06-13 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides a comprehensive analysis of the degree of co-movement among the nominal price returns of 11 major energy, agricultural, and food commodities using monthly data between 1970 and 2013. The authors study the extent and the time evolution of unconditional and conditional correlations using a uniform-spacings testing approach, a multivariate dynamic conditional correlation model and a rolling regression procedure.
Book Synopsis Handbook of Bioenergy Economics and Policy by : Madhu Khanna
Download or read book Handbook of Bioenergy Economics and Policy written by Madhu Khanna and published by Springer Science & Business Media. This book was released on 2009-12-02 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns about energy security, uncertainty about oil prices, declining oil reserves, and global climate change are fueling a shift towards bioenergy as a renewable alternative to fossil fuels. Public policies and private investments around the globe are aiming to increase local capacity to produce biofuels. A key constraint to the expansion of biofuel production is the limited amount of land available to meet the needs for fuel, feed, and food in the coming decades. Large-scale biofuel production raises concerns about food versus fuel tradeoffs, about demands for natural resources such as water, and about potential impacts on environmental quality. The book is organized into five parts. The introductory part provides a context for the emerging economic and policy challenges related to bioenergy and the motivations for biofuels as an energy source. The second part of the handbook includes chapters that examine the implications of expanded production of first generation biofuels for the allocation of land between food and fuel and for food/feed prices and trade in biofuels as well as the potential for technology improvements to mitigate the food vs. fuel competition for land. Chapters in the third part examine the infrastructural and logistical challenges posed by large scale biofuel production and the factors that will influence the location of biorefineries and the mix of feedstocks they use. The fourth part includes chapters that examine the environmental implications of biofuels, their implications for the design of policies and the unintended environmental consequences of existing biofuel policies. The final part presents economic analysis of the market, social welfare, and distributional effects of biofuel policies.
Book Synopsis Commodity Prices and the New Inflation by : Barry Bosworth
Download or read book Commodity Prices and the New Inflation written by Barry Bosworth and published by Brookings Institution Press. This book was released on 1982 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of primary commodities in industries economies; The contribution of primary commodity price increases to inflation; Sources of commodity price fluctuations; Grain and petroleum: the role of institutional changes; The policy choices: some general considerations; Commodity stabilization policies: some specific proposals.
Book Synopsis International Commodity Prices and Domestic Bank Lending in Developing Countries by : Isha Agrawal
Download or read book International Commodity Prices and Domestic Bank Lending in Developing Countries written by Isha Agrawal and published by International Monetary Fund. This book was released on 2017-12-14 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the role of the bank-lending channel in propagating fluctuations in commodity prices to credit aggregates and economic activity in developing countries. We use data on more than 1,600 banks from 78 developing countries to analyze the transmission of changes in international commodity prices to domestic bank lending. Identification relies on a bankspecific time-varying measure of bank sensitivity to changes in commodity prices, based on daily data on bank stock prices. We find that a fall in commodity prices reduces bank lending, although this effect is confined to low-income countries and driven by commodity price busts. Banks with relatively lower deposits and poor asset quality transmit commodity price changes to lending more aggressively, supporting the hypothesis that the overall credit response to commodity prices works also through the credit supply channel. Our results also show that there is no significant difference in the behavior of foreign and domestic banks in the transmission process, reflecting the regional footprint of foreign banks in developing countries.
Book Synopsis A Theory of Commodity Price Fluctuations by : Marcus J. Chambers
Download or read book A Theory of Commodity Price Fluctuations written by Marcus J. Chambers and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper studies the price fluctuations of storable commodities that are traded in open markets and are subject to random shocks to demand or, more particularly, to supply. It relaxes the common assumption that the shocks are identically and independently distributed in favor of temporally dependent and periodic disturbances. The existence of a unique stationary rational expectations equilibrium is demonstrated for each of the models analyzed, and testable implications of the models are derived. An illustrative empirical investigation is then undertaken for the model with periodic disturbances using monthly time-series observations for seven commodities over the period 1960 - 93.
Author :International Monetary Fund. Research Dept. Publisher :International Monetary Fund ISBN 13 :1475507038 Total Pages :299 pages Book Rating :4.4/5 (755 download)
Book Synopsis World Economic Outlook, April 2012 by : International Monetary Fund. Research Dept.
Download or read book World Economic Outlook, April 2012 written by International Monetary Fund. Research Dept. and published by International Monetary Fund. This book was released on 2012-04-17 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The April 2012 issue of the World Economic Outlook assesses the prospects for the global economy, which has gradually strengthened after a major setback during 2011. The threat of a sharp global slowdown eased with improved activity in the United States and better policies in the euro area. Weak recovery will likely resume in the major advanced economies, and activity will remain relatively solid in most emerging and developing economies. However, recent improvements are very fragile. Policymakers must calibrate policies to support growth in the near term and must implement fundamental changes to achieve healthy growth in the medium term. Chapter 3 examines how policies directed at real estate markets can accelerate the improvement of household balance sheets and thus support otherwise anemic consumption. Chapter 4 examines how swings in commodity prices affect commodity-exporting economies, many of which have experienced a decade of good growth. With commodity prices unlikely to continue growing at the recent elevated pace, however, these economies may have to adapt their fiscal and other policies to lower potential output growth in the future.
Book Synopsis Food Price Volatility and Its Implications for Food Security and Policy by : Matthias Kalkuhl
Download or read book Food Price Volatility and Its Implications for Food Security and Policy written by Matthias Kalkuhl and published by Springer. This book was released on 2016-04-12 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides fresh insights into concepts, methods and new research findings on the causes of excessive food price volatility. It also discusses the implications for food security and policy responses to mitigate excessive volatility. The approaches applied by the contributors range from on-the-ground surveys, to panel econometrics and innovative high-frequency time series analysis as well as computational economics methods. It offers policy analysts and decision-makers guidance on dealing with extreme volatility.
Book Synopsis The Effect of Commodity Price Shocks on Underlying Inflation by : Scott Davis
Download or read book The Effect of Commodity Price Shocks on Underlying Inflation written by Scott Davis and published by . This book was released on 2015 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper seeks to document and explain the effect of a commodity price shock on underlying core inflation, and how that effect changes both across time and across countries. Impulse responses derived from a structural VAR model show that across many countries there was a break in the response of core inflation to a commodity price shock. In an earlier period, a shock to commodity prices would lead to a large and significant increase in core inflation, but in later periods, the effect was insignificant. To explain this, we construct a large-scale DSGE model with both headline and core inflation, and most significantly, a mechanism whereby fluctuations in inflation caused by purely transitory shocks can become incorporated into long-term inflation expectations. Inflation has a trend and a cyclical component. Private agents cannot distinguish between the two, so a cyclical fluctuation in inflation may be confused for a shift in the trend component. Bayesian estimation reveals that there was a change between the earlier and the later periods in the parameter that governs the anchoring of expectations. Impulse responses derived from simulations of the model show that this change in the effect of commodity prices on core inflation is driven by the change in the anchoring of inflation expectations.
Book Synopsis Co-Movement of Major Commodity Price Returns by : Francesca de Nicola
Download or read book Co-Movement of Major Commodity Price Returns written by Francesca de Nicola and published by . This book was released on 2017 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides a comprehensive analysis of the degree of co-movement among the nominal price returns of 11 major energy, agricultural and food commodities based on monthly data between 1970 and 2013. A uniform-spacings testing approach, a multivariate dynamic conditional correlation model and a rolling regression procedure are used to study the extent and the time-evolution of unconditional and conditional correlations. The results indicate that (i) the price returns of energy and agricultural commodities are highly correlated; (ii) the overall level of co-movement among commodities increased in recent years, especially between energy and agricultural commodities and in particular in the cases of maize and soybean oil, which are important inputs in the production of biofuels; and (iii) particularly after 2007, stock market volatility is positively associated with the co-movement of price returns across markets.
