Willingness to pay models have shown the theoretical relationships between the contingent valuation, cost of illness and the avertive behaviour approaches. In this paper, field survey data are used to compare the relationships between these three approaches and to demonstrate that contingent...

Reports results from a contingent valuation survey of willingness to pay for the conservation of the Asian elephant of a sample of urban residents living in three selected housing schemes in Colombo, the capital of Sri Lanka. Face–to–face surveys were conducted using an interview schedule. A...

Protected areas are often the source of agricultural pests and Xishuangbanna State Nature Reserve in Yunnan is no exception. The main pest associated with the Reserve is the Asian elephant Elephas maximus which causes damage outside the Reserve to agriculture as well as in the Reserve. However,...

Protected areas are often the source of agricultural pests and .Xishuangbanna State Nature Reserve in Yunnan is no exception. The main pest associated with the. Reserve is the Asian elephant, Elaphas maximus, which causes damage outside the Reserve to agriculture as well as in the Reserve....

This study considers the effect of cash cropping on food availability and investigates the determinants of household food expenditure as a proportion of gross income relying on a sample of rural households in the Nyeri district of Kenya. Results from an application of a Tobit model suggest that...

This article examines the effects of agricultural commercialization and other factors on per capita food availability by means of a case study in the Nyeri district in Kenya. It was found that cash cropping has a negative influence on per capita food availability in the male-headed households....

Sustainability issues and matters involving the conservation of biodiversity are no longer new subjects for environmental policy. Nevertheless, they are of continuing interest, there are always new dimensions to consider and unresolved questions remain. In fact, it may only be now that we are...

Introducing a stocking rate restriction is one possible course of action for regulators to improve water quality where it is affected by nitrate pollution. To determine the impact of a stocking rate restriction on a range of New Zealand dairy farms, a whole-farm model was optimised with and...

Ecological, evolutionary and economic issues involved in introducing genetically modified organisms (GMOs), mainly in agriculture, are discussed. The ecological and evolutionary impacts identified hamper (economic) valuation of GMOs and their biosafety regulation and creates difficulties for...

Provides some background on concerns about the sustainability of agriculture, outlines and discusses views about what constitutes sustainable agriculture and contrasts the sustainability of modern industrialised agriculture with that of traditional agriculture. Then the question is considered...