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| Registros recuperados: 251 | |
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| Tsur, Yacov; Zemel, Amos. |
| Under risk of abrupt climate change, the occurrence hazard is added to the social discount rate. As a result, the social discount rate (i) increases and (ii) turns endogenous to the global warming policy. The second effect bears profound policy implications that are magnified by economic growth. In particular, we find that greenhouse gases (GHG) emission should be terminated at a finite time so that the ensuing occurrence risk will vanish in the long run. Due to the public bad nature of the catastrophic risk, the second effect is ignored in a competitive allocation and unregulated economic growth will give rise to excessive emissions. In fact, the GHG emission paths under the optimal and competitive growth regimes lie at the extreme ends of the range of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Abrupt climate change; Hazard rate; Discounting; Economic growth; Emission policy; H23; H41; O13; O40; Q54; Q58. |
| Ano: 2008 |
URL: http://purl.umn.edu/37944 |
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| Irz, Xavier T.; Roe, Terry L.. |
| This paper develops a two-sector model of growth where agriculture is considered explicitly. Key features of the model include: the reliance of agricultural production on a fixed but degrading resource base, the use by the farm sector of industrially produced inputs and differing rates of technological progress in the two sectors. On the demand side, the low income elasticity for food as well as the life-sustaining function of food consumption are recognized. In this simplified framework, the sustainability of growth can be related to the existence of a steady state reflecting the ability of the economy to feed its population. This property is used to identify the characteristics within and outside of agriculture conducive to the sustainability of a... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Sustainability; Agriculture and growth; Dynamic general equilibrium model; International Development; O41; O13; F11. |
| Ano: 2000 |
URL: http://purl.umn.edu/21762 |
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| Viet Cuong, Nguyen. |
| This paper measures impacts of production of crops, forestry, livestock and aquaculture on household welfare, poverty and inequality in rural Vietnam using fixed-effects regressions. Data used in this paper are from Vietnam Household Living Standard Surveys 2002 and 2004. It is found that impact estimates of the production of crops and forestry on per capita income and consumption expenditure are not statistically significant. Impact estimates of the livestock production are positive and statistically significant for per capita income, but not statistically significant for per capita expenditure. However, the aquacultural production has positive and statistically significant impacts on both income and expenditure. As a result, the aquacultural production... |
| Tipo: Article |
Palavras-chave: Agriculture; Farm households; Welfare; Poverty; Inequality; Vietnam; Agricultural and Food Policy; Food Security and Poverty; I32; Q12; O13. |
| Ano: 2011 |
URL: http://purl.umn.edu/118576 |
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| Tsur, Yacov; Withagen, Cees. |
| We study optimal adaptation to climate change when the harmful consequences of global warming are associated with stochastic occurrence of abrupt changes. The adaptation policy entails the accumulation of a particular sort of capital that will eliminate or reduce the catastrophic damage of an abrupt climate change when (and if) it occurs. The occurrence date is uncertain. The policy problem involves balancing the tradeoffs between the (certain) investment cost prior to occurrence and the benefit (in reduced damage) that will be realized after the (uncertain) occurrence date. For stationary economies the optimal adaptation capital converges to a steady state. For growing economies the optimal adaptation capital stock approaches the maximal economic level... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Climate change; Adaptation; Hazard; Environmental Economics and Policy; O13; Q54. |
| Ano: 2011 |
URL: http://purl.umn.edu/117652 |
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| Albers, Heidi J.. |
| This paper discusses the application of a spatial-intertemporal model for tropical forest management to Khao Yai National Park in Thailand. This type of model, especially the spatial components, finds different optimal land allocations than do traditional models at empirically relevant levels of benefits. The spatial analysis here suggests that most of this park can be best used as a preserved area and also provides support for expanding the park into an adjacent unpopulated area. The analysis demonstrates that the park's benefits to regional agriculture and villagers are large enough that preservation can proceed without international support, and that local people, as a group, have incentives to maintain most of the area as preserved land. Although the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Parks; Protected areas; People-park conflict; Spatial; Biodiversity; Option value; Resource /Energy Economics and Policy; Q2; Q15; O13. |
| Ano: 2001 |
URL: http://purl.umn.edu/10751 |
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| Kerr, Suzi; Lipper, Leslie; Pfaff, Alexander S.P.; Cavatassi, Romina; Davis, Benjamin; Hendy, Joanna; Sanchez, Arturo. |
| We review claims about the potential for carbon markets that link both payments for carbon services and poverty levels to ongoing rates of tropical deforestation. We then examine these effects empirically for Costa Rica during the 20th century using an econometric approach that addresses the irreversibilities in deforestation. We find significant effects of the relative returns to forest on deforestation rates. Thus, carbon payments would induce conservation and also carbon sequestration, and if land users were poor could conserve forest while addressing rural poverty. However, we find poorer areas are less responsive to returns. This and transaction costs could lead carbon payments policies not to be focused upon the poor. Other practical considerations... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Land Use; Deforestation; Poverty; Climate Change; Development; Costa Rica.; Resource /Energy Economics and Policy; I32; O13; Q51; Q54; Q56; Q31. |
| Ano: 2004 |
URL: http://purl.umn.edu/23807 |
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| Puskur, Ranjitha. |
| Watershed Development Programmes (WDPs) in India were conceived as tools for correcting the regional imbalances in agricultural development created by Green Revolution, through investments in soil and water conservation (SWC) and natural resource management (NRM) in rainfed areas. Though the overall impact of WDPs has been positive and significant, with increase in physical and economic access to groundwater, landless and marginal households hardly benefited from watershed development. Recent evidence points out that in many watersheds inequities increased, since for non-land owning and -well owning households access to drinking water, grazing lands and other natural resources decreased. This paper is based on a research project carried out by the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Watersheds; Livestock; Environment; Livelihoods; Markets; Services; Livestock Production/Industries; O13; Q56; Z13. |
| Ano: 2006 |
URL: http://purl.umn.edu/25724 |
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| Registros recuperados: 251 | |
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