This paper discusses a fundamental market failure regarding environmental conservation, and how the problem can be solved by appropriate policies. A "seller" (or owner of a tropical forest) may be motivated to conserve if a "buyer" is expected to pay. The buyer, however, does not find it necessary to pay as long as the seller conserves in any case. This contradiction implies that the forest wil...

Improving production efficiency is the main objective of government action to avoid efficiency losses and to increase the income of farmers. The aim of this study was to analyze performance levels of farms in the irrigated perimeter of Tadla in Morocco, according to the source of irrigation water. Thus, technical, allocative and economic efficiency were analyzed for farms in this area. To estim...

Håkansson, C. 2007. Cost-Benefit Analysis and Valuation UncertaintyEmpirical Contributions and Methodological Developments of a Study on Trade-offs between Hydropower and Wild Salmon. Doctor’s dissertation. ISSN 1652-6880, ISBN 91-576-7340-4 This thesis addresses the economic trade-offs between hydropower and fish production, based on an empirical assessment of the costs and benefits of changin...

Let R be a ring and V be a matrix valuation on R. It is shown that, there exists a correspondence between matrix valuations on R and some special subsets ?(MVPR) of the set of all square matrices over R, analogous to the correspondence between invariant valuation rings and abelian valuation functions on a division ring. Furthermore, based on Malcolmson’s localization, an alternative proof for t...

Even when information is made available through public campaigns, people may still retain inaccurate perceptions of environmental quality. We look at coastal water quality in Southern California via a telephone survey. Fewer than half of respondents are able to correctly rank two randomly chosen beaches in terms of water quality. A logit analysis of the rankings reveals that there are systemati...

The values of goods and services provided by natural and constructed wetlands are examined through a meta-analysis of 418 observations of the economic value of 186 wetlands. Water quality improvement, non-consumptive recreation, and provision of natural habitat and biodiversity turn out to be highly valued services. Substitution effects are observed through the negative correlation between valu...

• Environmental status, ecosystem services and restoration scenarios assessed. Field surveys, stakeholder workshops, a non-market valuation implemented. Water quality, sustainable fisheries mangrove conservation investigated. Mangrove provides the highest utility followed by water quality. Costs of modest to Ashtamudi lake comparable with benefits. Valuation can play an important role in guidin...

This study provides information about people’s valuation of recreational user days on public lands. The contingent valuation method is used with a random paired dichotomous choice question format. A bivariate probit model is utilized to estimate parameters of a willingness to pay function, which is used to calculate welfare measures associated with trips to three different sites and eight diver...