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Author: Claudio Cina
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Commodity prices exhibit different characteristics than traditional asset classes. This paper provides an in-depth analysis of the corresponding price dynamics transferring a time series approach originally proposed by Chan et al. (1992) to the field of commodities. One unrestricted and eight restricted stochastic models are assessed and empirically tested. Besides an incorporated mean reversion feature, the model also allows the volatility to change with the underlying price. Daily data of 22 commodities out of different sectors are taken into consideration. Generic front month future contracts form July 24, 1997 to January 6, 2011 were used for the analysis (3511 observations), further splitting the time series into a bull (2002 - 2006) and bear market regime (2007 - 2008). Generalized Method of Moments (GMM) are applied to estimate the unknown parameters and a &u9672 goodness-of-fit test is run to evaluate which models capture best the dynamics of the corresponding commodities for different market regimes. In line with Geman and Shih (2009) we find that the CEV exponent &u947 plays a very important role in the modeling of commodity price dynamics whereas the mean reversion effect disappears for most of the commodities for the different periods under analysis.
Author: Claudio Cina
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Commodity prices exhibit different characteristics than traditional asset classes. This paper provides an in-depth analysis of the corresponding price dynamics transferring a time series approach originally proposed by Chan et al. (1992) to the field of commodities. One unrestricted and eight restricted stochastic models are assessed and empirically tested. Besides an incorporated mean reversion feature, the model also allows the volatility to change with the underlying price. Daily data of 22 commodities out of different sectors are taken into consideration. Generic front month future contracts form July 24, 1997 to January 6, 2011 were used for the analysis (3511 observations), further splitting the time series into a bull (2002 - 2006) and bear market regime (2007 - 2008). Generalized Method of Moments (GMM) are applied to estimate the unknown parameters and a &u9672 goodness-of-fit test is run to evaluate which models capture best the dynamics of the corresponding commodities for different market regimes. In line with Geman and Shih (2009) we find that the CEV exponent &u947 plays a very important role in the modeling of commodity price dynamics whereas the mean reversion effect disappears for most of the commodities for the different periods under analysis.
Author: Craig Pirrong
Publisher: Cambridge University Press
ISBN: 1139501976
Category : Business & Economics
Languages : en
Pages : 238
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Book Description
Commodities have become an important component of many investors' portfolios and the focus of much political controversy over the past decade. This book utilizes structural models to provide a better understanding of how commodities' prices behave and what drives them. It exploits differences across commodities and examines a variety of predictions of the models to identify where they work and where they fail. The findings of the analysis are useful to scholars, traders and policy makers who want to better understand often puzzling - and extreme - movements in the prices of commodities from aluminium to oil to soybeans to zinc.
Author: Walter C. Labys
Publisher:
ISBN:
Category : Coconut oil
Languages : en
Pages : 392
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Book Description
Deals with the theory and methods required for specifying, estimating, validating, and applying commodity models which describe behavior of a quarterly or annual nature, though certain ...
Author: Walter C. Labys
Publisher: Routledge
ISBN: 1351917080
Category : Business & Economics
Languages : en
Pages : 247
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Book Description
Recent economic growth in China and other Asian countries has led to increased commodity demand which has caused price rises and accompanying price fluctuations not only for crude oil but also for the many other raw materials. Such trends mean that world commodity markets are once again under intense scrutiny. This book provides new insights into the modeling and forecasting of primary commodity prices by featuring comprehensive applications of the most recent methods of statistical time series analysis. The latter utilize econometric methods concerned with structural breaks, unobserved components, chaotic discovery, long memory, heteroskedasticity, wavelet estimation and fractional integration. Relevant tests employed include neural networks, correlation dimensions, Lyapunov exponents, fractional integration and rescaled range. The price forecasting involves structural time series trend plus cycle and cyclical trend models. Practical applications focus on the price behaviour of more than twenty international commodity markets.
Author: Takatoshi Ito
Publisher: University of Chicago Press
ISBN: 0226386899
Category : Business & Economics
Languages : en
Pages : 346
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Book Description
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.
Author: Ali Nouri Dariani
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
This dissertation addresses the gap between commodity price models in economics and finance. The literature in finance often abstracts from market forces and calibrates a stochastic process of price dynamics in order to follow them closely and to price commodity derivatives, most importantly futures contracts. On the other hand models in economics literature often focus on supply, demand and inventories in the long-run. I have developed short-run structural models of commodity prices. These models provide a better description of price dynamics by considering the underlying structure of the economy. Since these models incorporate actions of market participants, they have the advantage of being able to process information signals about probabilities of future supply/demand shocks. The other advantage of short-run structural models is their power in prediction of unobservable states of the economy. Hence, these models provide a better description of forward curves in commodities markets. Recent advances in the theory of storage have been able to associate specific behaviors of commodity prices with inventory dynamics. These models assume producers and consumers who only consider current price, and storage units who consider the whole stochastic process of price in the future. This thesis improves upon these models in two aspects. First, I remove the assumption that the producers and consumers take into account only the current price. For depletable commodities specifically, and for many commodities in general, it is more plausible to assume that the producer has the option to sell the commodity now or postpone the extraction until a future time. The expected future dynamics of prices can change the current production decisions and as a result the current and future prices. My model characterizes the equilibrium of such a system and its comparative dynamics. Second, I introduce an advanced calibration algorithm for this model. Traditional models calibrate their parameters by minimizing their prediction error on aggregate measures such as the average volatility of forward prices. My approach considers the instances of forwards curves and tries to matches each of them. One advantage of this model is the ability to estimate the state of the system (e.g. remaining inventories) as well as the transient and permanent shocks in supply/demand. The theoretical framework of this dissertation shows that actions of rational market participants impose certain price dynamics to the market. Most examples in this work consider crude oil as it is the most traded commodity, with liquid future contracts for longer horizons. Calibration results demonstrate the improvements that short-run structural models could create in describing price dynamics.
Author: Craig Pirrong
Publisher: Cambridge University Press
ISBN: 9780521195898
Category : Business & Economics
Languages : en
Pages : 240
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Book Description
Commodities have become an important component of many investors' portfolios and the focus of much political controversy over the past decade. This book utilizes structural models to provide a better understanding of how commodities' prices behave and what drives them. It exploits differences across commodities and examines a variety of predictions of the models to identify where they work and where they fail. The findings of the analysis are useful to scholars, traders, and policy makers who want to better understand often puzzling - and extreme - movements in the prices of commodities from aluminum to oil to soybeans to zinc.
Author: Carlo Cafiero
Publisher:
ISBN:
Category :
Languages : en
Pages : 280
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Book Description
Author: Amal Dabbous
Publisher:
ISBN:
Category :
Languages : en
Pages : 121
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Book Description
This thesis consists of three essays in commodity price dynamics. In the first essay, we embed a staggered price feature into the speculative storage model of Deaton and Laroque (1996). Intermediate goods inventory speculators are added as an additional source of intertemporal linkage which helps us to replicate the stylized facts of the observed commodity price dynamics. The staggered pricing mechanism adopted in this paper can be viewed as a parsimonious way of approximating various types of frictions that increase the degree of persistence in the first two conditional moments of commodity prices. The structural parameters of our model are estimated by simulated method of moments using actual prices for four agricultural commodities. Simulated data are then employed to assess the effects of our staggered price approach on the time series properties of commodity prices. Our results lend empirical support to the possibility of staggered prices. The second essay investigates the determinants of the percentage change in commodity prices. We apply the dynamic Gordon growth model technique and conduct the variance decomposition for the percentage change in spot commodity prices to 6 agricultural commodities. The model explains the percentage change in spot commodity prices in terms of the expected present discounted values of interest rate, yield spread, open interest and convenience yield. Empirical results indicate that the model is successful in capturing a large proportion of the variability in the 6 agricultural commodity prices. Moreover, we show that yield spread and open interest help predicting changes in commodity prices. Finally, the third essay evaluates different hedging strategies for eleven commodities. In addition to the traditional regression hedge ratio model (OLS) and the vector error correction model (VECM), we estimate dynamic hedge ratios using the conventional dynamic conditional correlation model (DCC) of Engle (2002) and the diagonal BEKK model (DBEKK) of Engle and Kroner (1995). Moreover, we propose two more advanced models, the DCC model and the DBEKK model that will account for the impact of the growth rate of open interest on market’s volatility and co-movements of commodity spot and futures returns. The empirical analysis shows that adding the growth rate of open interest improves the in-sample hedging effectiveness of the DCC model. Furthermore, the out-of-sample hedging exercise empirical results show that static models present the best out-of-sample hedging performance for 5 of the commodities. The DCC model presents the smallest basis variance for 4 of the commodities. The DBEKK model with the growth rate of open interest performs the best in terms of the basis variance reduction for corn and wheat. Our out-of-sample empirical findings provide important implications for futures hedging and highlight the fact that the use of static models to determine the optimal hedge ratio could be more effective than the use of dynamic hedge ratio models.
Author: B.Philipp Kellerhals
Publisher: Springer Science & Business Media
ISBN: 3540246975
Category : Business & Economics
Languages : en
Pages : 247
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Book Description
Covers applications to risky assets traded on the markets for funds, fixed-income products and electricity derivatives. Integrates the latest research and includes a new chapter on financial modeling.
