|
|
|
|
|
| Benhin, James K.A.; Barbier, Edward B.. |
| This paper is a theoretical and empirical investigation into the impact of the structural adjustment program (SAP) on forest loss in Ghana between the period 1965-95. An optimal control model is used to derive estimable reduced form equations for forest loss, cocoa land, maize land and timber production, which are in turn functions of mainly input and output prices. Piecewise linear and switching regression approaches are used to distinguish between the influence of the post from the pre-adjustment policy impacts on forest land use. The overall results show that cocoa land expansion and timber production, but not maize land expansion, are significant causes of forest loss in Ghana. However, the impact on forest loss in the post-adjustment period was... |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2001 |
URL: http://purl.umn.edu/31611 |
| |
|
|
| Barbier, Edward B.. |
| This paper investigates the relationships among land-use change, biological invasion, and interspecific competition in a tropical ecosystem by linking a behavioral model of land conversion by agriculture and an ecological model of interspecific competition between a native species and an exotic invader. The model is used to examine how relative farm prices and access to forest areas influence land clearing and thus the ability of the invasive species to eliminate the native species. Simulations show that only a 20% rise in relative prices and a 2.75% increase in forest access are necessary for this outcome to occur. |
| Tipo: Journal Article |
Palavras-chave: Biological invasion; Interspecific competition; Land clearing; Tropical ecosystem; Tropical forest; O13; Q20; Q24. |
| Ano: 2007 |
URL: http://purl.umn.edu/37275 |
| |
|
|
| Pascual, Unai; Barbier, Edward B.. |
| This paper provides a theoretical framework to analyse land quality and labour allocation decisions by poor rural households in the context of increased population densities in slash-and-burn (shifting cultivation) agro-ecosystems. A bio-economic optimal control model is presented and its results calibrated with data from two farming communities from Yucatan (Mexico). The ecological-economic model restates the validity of the neo-Malthusian 'Population Pressure Hypothesis' (PPH) as a major factor of land degradation. It is pointed out that 'fallow crises' may be overcome when the production elasticity of total farm labour is sufficiently high compared to the elasticity of substituion between farm labour and soil quality. Calibration of the model also... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
| Ano: 2003 |
URL: http://purl.umn.edu/25827 |
| |
|
|
| Bhaduri, Anik; Manna, Utpal; Barbier, Edward B.; Liebe, Jens. |
| As multiple countries share a river, the likelihood of a water resource conflict from climate change could be higher between countries. In this paper, we demonstrate how countries can cooperate in transboundary water sharing in a sustainable way, given the impacts of climate change. We illustrate the case of water sharing of the Volta River between the upstream and downstream country, Burkina Faso and Ghana respectively, where the latter country faces a tradeoff of water use between agriculture in the north and production of hydro energy in the south. In the framework of a stochastic Stackelberg differential game, we have shown how the issue of water sharing could be linked to hydropower export that can make water sharing between the countries sustaining... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Climate Change; Water sharing; Resource /Energy Economics and Policy; Risk and Uncertainty. |
| Ano: 2009 |
URL: http://purl.umn.edu/51303 |
| |
|
| |
|
|
|
