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| Hubert, Marie-Helene; Chakravorty, Ujjayant; van Kooten, G. Cornelis. |
| In the context of ever-increasing petroleum prices combined with concerns about climate change, timing of adoption and rate of diffusion of land-based fuels and backstop technologies for transportation use are examined in this paper. A global model of land allocation joined with a Hotelling model has been developed. Using this framework, effects of climate and energy policies on world agricultural and energy markets have been explored. Further, their regional impacts are also analyzed. Whereas mandatory blending bio-fuels have substantial effects on world food prices and do not succeed in curbing down carbon emissions fluxes, carbon targets are expected to speed up date of adoption of backstop technologies. Then, sensitivity scenarios with regards to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Ricardian rents; Land use; Biofuels; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/44259 |
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| Hazell, Peter B.R.; Chakravorty, Ujjayant; Dixon, John; Celis, Rafael. |
| The worsening degradation of natural resources urgently requires the adoption of more sustainable management practices. This need has led to growing interest and investment in monitoring systems for tracking the condition of natural resources. Although grounded in concepts of sustainability, the application of monitoring systems has progressed little beyond the identification and measurement of large numbers of potentially interesting indicators. Most monitoring activities are also passive and do not lead to the changes needed to rectify the problems they identify. Too often monitoring becomes an end in itself and an expensive claim on public funds. This study is concerned with the design of monitoring systems that have direct relevance for the management... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2001 |
URL: http://purl.umn.edu/16119 |
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| Chakravorty, Ujjayant; Fisher, Donna K.. |
| Most coastal fisheries in the U.S. and other developed economies are going through a major transition. On the one hand, new technologies such as electronic enhancement to assist trawling have led to a decline in the unit cost of fishing, making it more economically efficient. On the other hand, this improved efficiency has possibly led to increased environmental damage. This has led to conflicts between fishermen and conservation groups. In the past, the main policy issue confronting fishery managers was the task of ensuring that stocks were managed at levels that sustained employment and profits in the fishing industry. However, in recent years, the dynamics of the coastal fishery has changed dramatically. More and more affluent people have settled... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/22082 |
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