No abstract

Results indicate that depressed mood is significantly related to increased mortality risk among heart failure patients. This finding is of concern to clinicians and should have implications for treatment of patients with congestive heart failure.

This paper explores consumer understanding and perception of organic food, with specific reference to the relatively new concept of organic farmed salmon. Key themes associated with the term “organic” and its meaning, as determined by consumers, are explored and the role of labelling and regulatory authorities considered. Focus groups in five countries (UK, Germany, Spain, Norway and France) consisting of 196 participants showed that most consumers are confused about the meaning of the term organic and are largely unaware of the organic certification and labelling process. Many consumers were unsure, even sceptical about the concept of organic farmed salmon and display a large amount of distrust in the regulatory process. The implications for the concept of organic food and salmon production and directions for further research are discussed.

No abstract

No abstract

Agglomeration externalities can have positive effects on both the production possibility frontier and technical inefficiency of firms. Increased levels of localized knowledge spillovers and substitution of internal inputs with external inputs may lead to fewer errors in decision-making and execution of production tasks, thus causing firms to become technically more efficient relative to the production frontier. When we estimate a stochastic frontier production model on a large panel of salmon aquaculture farms, we find econometric support for positive agglomeration externalities on both the production frontier and technical inefficiency. Copyright Blackwell Publishing, Inc. 2006

Managing and regulating aquaculture is a complicated issue. From the perspective of fish farmers as well as regulators managing aquaculture can be regarded as what political scientists refer to as a "wicked problem." This is because there is a great extent of uncertainty and lack of firm knowledge with respect to the externalities of aquaculture production; e.g., diseases, environmental impacts, and conflicts with other user interests. Furthermore, the dynamic nature of the aquaculture sector contributes to the uncertainty as new solutions emerge, rendering established knowledge obsolete or irrelevant. Designing appropriate public regulations and policy measures is thus important, but difficult. Based on empirical data from Norway, we investigate what respondents from public agencies and the industry perceive to be challenges in governing aquaculture and what we may infer on the characteristics of a good governance approach. We propose that such an approach needs to focus on building competence, collaboration, and be adaptable. Furthermore, it needs to be flexible and cost efficient.

We present a model of fishers' gear choice, which allows for heterogeneity both in production technology and risk preferences and apply it on a panel of Swedish trawlers. Stochastic revenue functions are estimated and used to predict the mean and standard deviation of revenue for each trip. In a random-parameters logit model, we test if these predicted values explain gear choice. A majority of fishers respond positively to increased mean and negatively to increased variability of expected landing values, indicating risk aversion, but also show a strong tendency to choose the same gear used on the previous trip. Copyright 2004, Oxford University Press.