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| Registros recuperados: 77 | |
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| Asad Falsafi Zadeh, Neda; Sabouhi Sabouni, Mahmood. |
| In current study, an irrigation examination and acquisition of environmental water in Kor River fields, that is dominated from Doroudzan dam to Bakhtegan Lake, was done by an integrated economy-environmental model. The model was considered by economic, hydrologic and agronomic components. In the economic component, an optimal harvesting of water was done using non-linear programming in two scenarios; with and without environmental water constraint. Solutions from simulation of environmental data in the hydrologic component, was used as initial data in the economic component. In the agronomic component, actual crop yield in wet, normal and dry years was determined using the relationship between crop yield and irrigation water amount. Results showed that,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Expected Net Income; Hydrology; Non-Linear Programming Model; Deficit Irrigation; Consumer/Household Economics; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; Risk and Uncertainty; C32; C61; D42; D61. |
| Ano: 2009 |
URL: http://purl.umn.edu/50258 |
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| Manera, Matteo; Nicolini, Marcella; Vignati, Ilaria. |
| This paper analyses futures prices for four energy commodities (light sweet crude oil, heating oil, gasoline and natural gas) and five agricultural commodities (corn, oats, soybean oil, soybeans and wheat), over the period 1986-2010. Using CCC and DCC multivariate GARCH models, we find that financial speculation is poorly significant in modelling returns in commodities futures while macroeconomic factors help explaining returns in commodities futures. Moreover, spillovers between commodities are present and the conditional correlations among commodities are high and time-varying. |
| Tipo: Working Paper |
Palavras-chave: Energy; Commodities; Futures Markets; Financial Speculation; Multivariate GARCH; Financial Economics; C32; G13; Q11; Q43. |
| Ano: 2012 |
URL: http://purl.umn.edu/122868 |
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| Rajcaniova, Miroslava; Drabik, Dusan; Ciaian, Pavel. |
| Based on their theoretical predictions, Kliauga, de Gorter, and Just (2008) and de Gorter, Drabik, and Just (2010) argue that the United States and the European Union establish the world ethanol and biodiesel prices, respectively. We test these theories using cointegration analysis and the Vector Error Correction (VEC) model. Weekly price series are analyzed for the major global biofuel producers (European Union, United States, and Brazil) for the period 2002 – 2010. Polices in the United States and Brazil appear to play an equal role in determining ethanol prices in other countries, thus only partially confirming the theoretical predictions. For biodiesel, our results demonstrate that the EU mandate impacts the world biodiesel price and thus they confirm... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Biofuels; Biofuel polices; Price leadership; VEC; International Relations/Trade; Resource /Energy Economics and Policy; C32; Q16; Q17; Q47. |
| Ano: 2011 |
URL: http://purl.umn.edu/114786 |
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| Katrakilidis, Konstantinos; Mardas, Dimitri. |
| This paper aims at specifying the main determinants of the intra-industry trade in agricultural products, associated with the funds of the Common Agricultural Policy (CAP) of the EC, and more precisely, with its “price support mechanism” and its “structural reform policy.” It presents CAP’s reformed main tools and mechanisms, and explains the choice of selected variables as determinants of intra-industry trade in agricultural products at intra-EC trade. The econometric analysis covers the period 1973-2005, following recent developments in time-series analysis employing the ARDL approach to cointegration. The empirical results provide evidence of Granger causal effects in both on short-run and long-run horizon running from CAP’s above mentioned policy tools... |
| Tipo: Article |
Palavras-chave: Common Agricultural Policy (CAP); Economic integration; Intraindustry trade; Agribusiness; Agricultural and Food Policy; Q17; F15; C32. |
| Ano: 2010 |
URL: http://purl.umn.edu/118670 |
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| Ben Kaabia, Monia; Gil Roig, Jose Maria. |
| RESUMEN: El objetivo de este trabajo consiste en analizar el proceso de transmisión de precios a lo largo de la cadena comercial en el sector del tomate en España. Para ello se han considerado el precio percibido por el productor y el pagado por el consumidor. El enfoque metodológico adoptado se basa en la estimación de un Vector de Corrección del Error con umbrales. Los resultados indican que, a largo plazo, los dos precios son homogéneos. Sin embargo, en el corto plazo las reacciones de precios, tanto en velocidad como en magnitud, son asimétricas. Es más, los resultados indican que los detallistas se benefician (en el sentido de que son capaces de aumentar el margen comercial) de cualquier shock, ya sea positivo o negativo, que afecte tanto a las... |
| Tipo: Journal Article |
Palavras-chave: Asimetrías; Cointegración por umbrales; Precios; Tomate; Threshold cointegration; Prices; Tomato; Asymmetries; Demand and Price Analysis; Research Methods/ Statistical Methods; C32; Q13. |
| Ano: 2008 |
URL: http://purl.umn.edu/37189 |
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| Serra, Teresa; Zilberman, David. |
| Our paper looks at how price volatility in the Brazilian ethanol industry changes over time and across markets. Demand and supply forces in the energy and food markets are likely to ensure that crude oil, ethanol and feedstock prices co-move in the long-run. Hence, when assessing price volatility changes and spillovers in the ethanol industry, one should also pay attention to the notion of cointegration. Until recently, the methods proposed to estimate cointegration relationships, have not explicitly considered time varying volatility in the data. Seo (2007) suggests an estimator of the cointegration vector that explicitly models conditional heteroskedasticity. More specifically, he proposes a maximum likelihood estimator that estimates the error... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Volatility; Ethanol; Cointegration; Demand and Price Analysis; Research Methods/ Statistical Methods; Q11; C32. |
| Ano: 2009 |
URL: http://purl.umn.edu/49940 |
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| Mallory, Mindy L.; Lence, Sergio H.. |
| This study highlights some problems with using the Johansen cointegration statistics on data containing a negative moving average (NMA) in the error term of the data generating process. We use a Monte Carlo experiment to demonstrate that the asymptotic distribution of the Johansen cointegration statistics is sensitive to the NMA parameters and that using the stated 5% critical values results in severe size distortion. In our experiment, using the asymptotic critical values resulted in empirical size of 76% in the worst case. To date a NMA in the error term was known to cause poor small sample performance of the Johansen cointegration statistics; however our study demonstrates that problems associated with a NMA in the error term do not improve as sample... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Cointegration; Johansen cointegration test; Moving average; Agricultural Finance; Financial Economics; C32; C15. |
| Ano: 2010 |
URL: http://purl.umn.edu/61721 |
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| Miljkovic, Dragan; Marsh, John M.; Brester, Gary W.. |
| Japanese import demand for U.S. beef and pork products and the effects on domestic livestock prices are econometrically estimated. Japan is the most important export market for U.S. beef and pork products. Results indicate foreign income, exchange rates, and protectionist measures are statistically significant. The comparative statistics quantify the effects of recent economic volatility. For example, the 1995-1998 depreciation in the Japanese yen (39%) reduced U.S. slaughter steer and hog prices by $1.29 per cwt and $0.99 per cwt, respectively, while the 1994-1998 reduction in tariffs (14%) increased slaughter steer and hog prices by $0.49 per cwt and $0.33 per cwt, respectively. Livestock producers will continue to have a vested interest in Asian... |
| Tipo: Journal Article |
Palavras-chave: Elasticities; Exchange rates; Import demand; Income; Tariffs; Demand and Price Analysis; Q17; F14; C32. |
| Ano: 2002 |
URL: http://purl.umn.edu/15072 |
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| Rajcaniova, Miroslava; Drabik, Dusan; Ciaian, Pavel. |
| Kliauga, de Gorter, and Just (2008) and de Gorter, Drabik, and Just (2010) argue that the United States and the European Union establish the world ethanol and biodiesel prices, respectively. We test these theories using a cointegration analysis and the Vector Error Correction (VEC) model. Weekly price series are analyzed for the major global biofuel producers (European Union, United States, and Brazil) for the period 2002 – 2010. Biofuel policies in both the United States and Brazil appear to play a role in determining the ethanol prices in other countries, thus only partially confirming the previous findings for the U.S. price leadership in the literature. For biodiesel, our results demonstrate that the EU tax exemption and mandate impact the world... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Biofuels; Biofuel polices; Price leadership; VEC; Agricultural and Food Policy; International Relations/Trade; C32; Q16; Q17; Q47. |
| Ano: 2011 |
URL: http://purl.umn.edu/103222 |
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| Elmarzougui, Eskandar; Larue, Bruno. |
| The relationship between corn and oil prices is not a stable one. We identified three breaks in the relationship between corn and oil prices. The first break coincides with the second oil crisis. The second break marks the end of the agricultural export subsidy war between the EU and the US in the mid 1980s while the third one occurred at the beginning of the ethanol boom at the very end of the 1990s. The relationship between corn and oil prices tends to be stronger when oil prices are highly volatile and when agricultural policies create less distortion. The ethanol boom strengthened the relation between corn and oil prices which are (were not) cointegrated in the fourth regime (first three) regime(s). Impulse response functions confirm that corn prices... |
| Tipo: Working Paper |
Palavras-chave: Oil; Corn; Structural changes; Cointegration; Ethanol; Protectionism; Agricultural and Food Policy; C32; Q11; Q17; Q40. |
| Ano: 2011 |
URL: http://purl.umn.edu/118580 |
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| Registros recuperados: 77 | |
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