Applications of Dual Theory in Fisheries: A Survey

Jensen, Carsten Lynge

doi:10.1086/mre.17.4.42629372

Cited by 35 publications

(16 citation statements)

References 51 publications

(91 reference statements)

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“…Several previous studies have commented on the potential inappropriateness of estimating single output production functions in fisheries largely as a consequence of input-output non-separability (Jensen 2002). Many earlier studies have largely employed dual cost (Lipton andStrand 1992, Wenin-ger 1998), profit (Squires 1987) or revenue functions (Kirkley and Strand 1988;Squires and Kirkley 1991) in order to incorporate the multiple outputs (see also Jensen 2002).…”

Section: Discussionmentioning

confidence: 99%

Estimating Targeting Ability in Multi-Species Fisheries: A Primal Multi-Output Distance Function Approach

Pascoe¹,

Koundouri²,

Bjørndal³

2007

Land Economics

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In this paper, we estimate a multioutput distance function for two North Sea fleet segments and derive output elasticities of substitution to examine the potential for changing catch composition though targeting fishing activity. We find that this ability differs between fleet segments, and also within fleet segments due to differences in vessel characteristics, with larger vessels appearing to be more able to influence their catch composition than smaller vessels. We argue that failure to quantify and integrate these technical interactions in the construction of management instruments for fisheries regulation may result in increased discarding and/or illegal fishing. (JEL Q22)

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Section: Discussionmentioning

confidence: 99%

Estimating Targeting Ability in Multi-Species Fisheries: A Primal Multi-Output Distance Function Approach

Pascoe¹,

Koundouri²,

Bjørndal³

2007

Land Economics

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“…The authors conclude that inputs to catch sablefish are joint for this and several other species. In a survey article, Jensen (2002) discusses technological and economic features in fisheries and compares results from 12 different studies. Nine of these studies report that production is joint in inputs.…”

Section: Costs In the Fisherymentioning

confidence: 99%

Variable unit costs in an output-regulated industry: The Fishery

Sandberg¹

2006

Applied Economics

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Departing from general cost theory of the firm and bioeconomic theory of the fishery, this study contributes with an empirical examination of how variable unit costs in a Norwegian demersal and pelagic fishery depend on output and the fish stock. The identification of the separate effects that the two factors have on costs is not common in the literature. Three Norwegian fleets fishing Norwegian spring spawning herring (Clupea Harengus) and five Norwegian fleets fishing Northeast Arctic cod (Gadus Morhua) are evaluated. The findings indicate that variable unit costs fall in output in both fisheries. The results also show that variable unit costs fall in fish stock in the demersal fishery, but with a stock elasticity of variable unit costs in absolute terms significantly less than 1. These results are of relevance to a manager seeking the optimal harvest rule and to understand fishermen's incentives when individual vessel quotas are reduced.

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“…2 The relevance of output or revenue maximization for fisheries has been recognized by researchers such as, Squires (1987), Kirkley et al (1995), Weninger and Just (1997), and Weninger (2001). A useful survey of the application of dual models to fisheries is provided in Jensen (2002). Note also that output and revenue data are more readily available than input price data required for cost-or profit-based dual economic models.…”

Section: Introductionmentioning

confidence: 99%

Fishing Revenue, Productivity and Product Choice in the Alaskan Pollock Fishery

Paul

Torres

Felthoven

2009

Environ Resource Econ

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A key element in evaluating fishery management strategies is examining their effects on the economic performance of fishery participants, yet nearly all empirical studies of fisheries focus exclusively on the amount of fish harvested. The economic benefits derived from fish stocks involve the amount of revenue generated from fish processing, which is linked to both the way fish are harvested and the products produced from the fish. In this study we econometrically estimate a flexible revenue function for catcher-processor vessels operating in the Alaskan pollock fishery, recognizing potential endogeneity and a variety of fishing inputs and conditions. We find significant own-price supply responses and product substitutability, and enhanced revenues from increased fishing days and tow duration after a regulatory change introduced property rights through a new fishing cooperative. We also find significant growth in economic productivity, or higher revenues over time after controlling for observed productive factors and price changes, which exceeds that attributable to increased harvest. These patterns suggest that the move to rights-based management has contributed significantly to economic performance in the pollock fishery.

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Applications of Dual Theory in Fisheries: A Survey

Cited by 35 publications

References 51 publications

Estimating Targeting Ability in Multi-Species Fisheries: A Primal Multi-Output Distance Function Approach

Estimating Targeting Ability in Multi-Species Fisheries: A Primal Multi-Output Distance Function Approach

Variable unit costs in an output-regulated industry: The Fishery

Fishing Revenue, Productivity and Product Choice in the Alaskan Pollock Fishery

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