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| Registros recuperados: 337 | |
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| Jayne, Thomas S.; Chapoto, Antony; Minde, Isaac J.; Donovan, Cynthia. |
| The dramatic rise in world food prices since 2007 has commanded the world’s attention. However, in recent months, world food prices have fallen almost as rapidly as they had risen in late 2007 and early 2008, yet as is demonstrated in this report, domestic food price levels in many eastern and southern African markets are not closely tracking world prices. Fertilizer prices remain at unprecedentedly high levels and may have a critical influence on future food production levels in the region. Against this backdrop, there is an urgent need for information about how the current food situation is unfolding in the region, the immediate policy response options, and the longer-term challenges and opportunities. This study has three objectives: 1) to examine the... |
| Tipo: Report |
Palavras-chave: Agriculture; Africa; Food security; Price; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Q11. |
| Ano: 2008 |
URL: http://purl.umn.edu/54556 |
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| Souty, Francois; Brunelle, Thierry; Dumas, Patrice; Dorin, Bruno; Ciais, Philippe; Crassous, Renaud. |
| Interactions between food demand, biomass energy and forest preservation are driving both food prices and land-use changes, regionally and globally. This study presents a new model called Nexus Land-Use which describes these interactions through a generic representation of agricultural intensification mechanisms. The Nexus Land-Use model equations combine biophysics and economics into a single coherent framework to calculate crop yields, food prices, and resulting pasture and cropland areas within 12 regions inter-connected with each other by international trade. The representation of cropland and livestock production systems in each region relies on three components: (i) a biomass production function derived from the crop yield response function to inputs... |
| Tipo: Working Paper |
Palavras-chave: Land-use Change; Modelling; Global Biomass Projections; Environmental Economics and Policy; Q11; Q15. |
| Ano: 2012 |
URL: http://purl.umn.edu/122859 |
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| Letson, David; McCullough, B.D.. |
| In this paper we seek to characterize the robustness of the ENSO/soybean price relationship and to determine whether it has practical economic content. If such a meaningful relationship exists, the implications could be profound for commodity traders and for public sector investments in climate forecasting capabilities. Also, the validity of economic evaluations of climate impacts and climate forecasts based on ENSO-price independence would come into question. Our findings suggest a relationship between interannual climate and soybean prices, although we are not able to attribute the relationship to ENSO or to say the ENSO is economically important. |
| Tipo: Journal Article |
Palavras-chave: Climate forecasting; Granger causality; Spectral analysis; SOI; SST; Resource /Energy Economics and Policy; C22; Q11. |
| Ano: 2001 |
URL: http://purl.umn.edu/15443 |
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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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| Registros recuperados: 337 | |
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