In this paper, we propose an alternative preference uncertainty measurement approach where respondents have the option to indicate their willingness to pay (WTP) for a nature protection program either as exact values or intervals from a payment card, depending on whether they are uncertain about...

Even though surface water has been polluted almost everywhere in China, few economic valuation studies have been conducted to value water quality changes. This paper reports an economic valuation study conducted in Yunnan, China, which estimates the total value of a real investment project to...

The restitution of parkland to the Khomani San “bushmen” and Mier “agricultural” communities in May 2002 marked a significant shift in conservation in the Kgalagadi Transfrontier Park and environs in South Africa. Biodiversity conservation will benefit from this land restitution only if...

Oil spills are capable of causing major environmental insults that raise the emotional loads of individuals across society. In this paper we consider the role of emotions in heterogeneous responses of individuals in the non-market valuation of an oil prevention program in Spain. Heterogeneity is...

The preponderance of evidence from many studies is that less wealthy households are subjected to greater exposure per capita and in aggregate to air pollution, water pollution, and toxic wastes. It also is the case that the less wealthy are provided with a disproportionately low amount of other...

This paper examines the role of direct compensation payments for agrobiodiversity conservation, using minor millet landraces in India as an example. The cost of farmer participation in a hypothetical ‘payments for agrobiodiversity conservation services’ (PACS) scheme is estimated using a...

The standard test for scope sensitivity in contingent valuation studies determines whether the response to changes in scope is statistically significant; it does not address whether the magnitude of response is appropriate given the specified changes in scope. We examine contingent valuation...

Non-market valuation approaches for estimating the social value of biodiversity and individual species need to enhance their policy relevance. The concept of service-providing unit (SPU) may help achieve this objective by promoting the systematic quantification of the key components of nature...

The Demilitarised Zone (DMZ) and its adjoining areas serve not only as a geopolitical buffering zone between North and South Korea, but also as rare refuges for various animals and plants. This paper investigates conservation values of major DMZ resources and comparatively tests distance decay...

In this paper, we propose a behavioral approach to determine the extent to which the consumer/citizen distinction affects interpretations of monetary values in stated preferences methods. We perform a field experiment dealing with air pollution, where some (randomly selected) subjects are given...