Economic inefficiency and environmental impact: An application to aquaculture production

Asche, Frank; Roll, Kristin H.; Tveterås, Ragnar

doi:10.1016/j.jeem.2008.10.003

Cited by 107 publications

(40 citation statements)

References 27 publications

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“…The conditional ownprice elasticities (E i ) all have the expected negative sign, with feed input having the lowest elasticity. They are within the range of estimates from previous econometric studies of Norwegian salmon farming [6], [12], [13], [14]. However, this technical progress varies considerably over time, as shown in Figure 3, where we have plotted the development in the annual average rate of technical change (the negative of TC) together with the development in real production costs including feed, labor and capital.…”

Section: Estimation Of Productivity Growthsupporting

confidence: 68%

Innovations and Productivity Performance in Salmon Aquaculture

Asche

Roll

Tveterås

2012

Advances in Production Management Systems. Value Networks: Innovation, Technologies, and Management

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Abstract. Since the 1980s a large number of innovations have radically transformed the production process in salmon aquaculture. Increased degree of control with the production process, increased scale of plants, and more intensive use of farm locations are some of the consequences. Until the mid 1990s the industry also experienced rapid productivity growth leading to production costs to be reduced to 1/3 of their initial levels in Norwegian salmon aquaculture. But thereafter productivity has been stagnant. This paper analyses the innovation process and productivity growth in the Norwegian salmon industry, and discusses the challenges for the future.

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Section: Estimation Of Productivity Growthsupporting

confidence: 68%

Innovations and Productivity Performance in Salmon Aquaculture

Asche

Roll

Tveterås

2012

Advances in Production Management Systems. Value Networks: Innovation, Technologies, and Management

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“…If producers affect the environmental condition negatively by using too much feed, chemical and antibiotics, it can have negative feedback effects such as decreased productivity and increased risk of disease (Asche et al, 1999(Asche et al, , 2009Tveterås et al, 2002). The average optimum feed, fertilizer and medicine of the small ponds are higher than their counterparts and the overall average level (Table 6).…”

Section: Discussionmentioning

confidence: 99%

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Yin¹,

Wang²,

Zhao³

et al. 2014

Turk. J. Fish. Aquat. Sci.

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Polyculture is commonly practiced in pond aquaculture where several fish species are reared together, creating a multioutput production structure. This study examines the technical (TE), allocative (AE) and economic efficiency (EE) of the most widely practiced fish-producing polyculture system in the coastal area of Yancheng city, China, which deals mostly with the production of crucian carp alongside silver carp and bighead carp. Data envelopment analysis is used to measure the efficiencies, while Tobit regression is applied to identify the factors affecting efficiencies. The estimated TE, AE and EEs are 0.92, 0.96, and 0.88 respectively. Crucian carp polyculture is characterized by moderate technical inefficiencies, necessitating the development and dissemination of new technology to increase the productivity of these farmers. On average, small ponds were found to be more technically efficient while large ponds were found to have higher allocative and scale efficiencies. Additionally, Tobit regression revealed a positive effect between farm size and efficiencies. These findings provide some support for the current standardized pond program in China. The use of hired labor decreased technical efficiencies of fish farmers. Fingerling size had a significant positive effect on efficiencies. In order to manage constantly expanding crucian carp polyculture, farmers should be provided with information on sizable fingerlings, economic pond sizes, and employee supervision, among other factors.

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“…Externalities may be both negative (e.g., environmental emissions, diseases, and parasites) and positive (e.g., agglomeration economies), but are in both cases effects from aquaculture production activities that are not fully internalized in the economic decision-making of aquaculture companies (Asche, 2009b;. The challenge for the government has been that the uncertain knowledge about externalities means that the estimation of costs and benefits associated with externalities is difficult and provides poor guidelines for the design of appropriate regulations that will maximize social welfare.…”

Section: Designing Good Governance For Wicked Problemsmentioning

confidence: 99%

“…Aquaculture sectors also rely heavily on the aquatic environment, and their production activities may have significant effects on the aquatic environment and other user interests or stakeholders; (Asche, Guttormsen, & Tveteras, 1999;Asche et al, 2009b;Tacon & Metian, 2008;Abate, Nielsen, & Tveteras, 2016). Hence, aquaculture is a natural candidate for government policy interventions and regulations.…”

Section: Introductionmentioning

confidence: 99%

Fish farmers and regulators coping with the wickedness of aquaculture

Osmundsen

Almklov

Tveterås

2017

Aquaculture Economics & Management

102

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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.

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Economic inefficiency and environmental impact: An application to aquaculture production

Cited by 107 publications

References 27 publications

Innovations and Productivity Performance in Salmon Aquaculture

Innovations and Productivity Performance in Salmon Aquaculture

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Fish farmers and regulators coping with the wickedness of aquaculture

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