h e l ow of ecosystem services from coral reefs, seagrass meadows and mangrove forests sustains the livelihoods of billions of people worldwide. Faced with the global degradation of marine and coastal ecosystems, policy makers are increasingly focusing on ecosystem service valuation techniques to encourage conservation and sustainable use of marine resources. Here we provide a review and synthe...

Coral reef ecosystems provide many functions, services and goods to coastal populations, especially in the developing world. A variety of anthropogenic practices threatens reef health and therefore jeopardises the benefits flowing from these services and goods. These threats range from local pollution, sedimentation, destructive fishing practices and coral mining to global issues like coral ble...

The valuation of ecosystem services is a complex process as it includes several dimensions (ecological, socio-cultural and economic) and not all of these can be quantified in monetary units. The aim of this paper is to conduct an ecosystem services valuation study for mangroves ecosystems, the results of which can be used to inform governance and management of mangroves. We used an expert-based...

This paper discusses the concept o f economic value in relation to the appraisal of marine environmental resources. The difficulties of placing monetary values on environmental goods and services for which there is no market are briefly reviewed. A case study is presented which uses contingent valuation to estimate the user value associated with a recreational beach. The paper concludes that ec...

Online social networks have been gaining increasing economic importance in light of the rising number of their users. Numerous recent acquisitions priced at enormous amounts have illustrated this development and revealed the need for adequate business valuation models. The value of an online social network is largely determined by the value of its users, the relationships between these users, a...

Quantifying the monetary value of ecosystem services provided by coastal and marine resources can help policy makers assess the trade-offs and synergies inherent in ecosystem-based management of marine and coastal environments, thus increasing the social efficiency of decision-making processes. As shown by the valuation literature, the number of coastal and marine management settings where valu...

Contingent valuation is the most flexible and controversial non-market valuation technique. One of the unresolved issues concerns the question of whether respondents are reminded of the economic constraints within which they should express their preferences. A study design which is appropriate for reminding economic constraints can be found in the use of joint evaluation (JE), i.e. evaluating s...

The Swedish coastal zone is a scene of conflicting interests about various goods and services provided by nature. Open-access conditions and the public nature of many services increase the difficulty in resolving these conflicts. "Sustainability" is a vague but widely accepted guideline for finding reasonable trade-offs between different interests. The UN view of sustainable development suggest...

In economic Grid environments, the producers (resource owners) and consumers (resource users) have different goals, objectives, strategies, and supply-and-demand patterns. Mechanism based on economic models is an effective approach to solve the problem of grid resources management. Grid resource valuation and allocation is one of the fundamental problems in grid resource management. The essence...

I explore the value implications of economic models by highlighting what features persist in the long-term. I accomplish this by developing a decomposition of valuation dynamics (DVD). I use it to distinguish components of an underlying economic model that influence values over long horizons from components that impact only the short run. I apply my approach to study example economies from the ...