Now showing items 1-14 of 14

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      A bayesian estimation of the economic effects of the Common Fisheries Policy on the Galician Fleet: a dynamic stochastic general equilibrium approach 

      Colla-De-Robertis, Esteban; Da Rocha, José María; García-Cutrín, Javier; Gutiérrez Huerta, María José; Prellezo, Raúl (Elsevier, 2019-01-01)
      What would have happened if a relatively looser fisheries policy had been implemented in the European Union (EU)? Using Bayesian methods a Dynamic Stochastic General Equilibrium (DSGE) model is estimated to assess the ...
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      Economic Effects of Global Warming under Stock Growth Uncertainty: The European Sardine Fishery 

      Da Rocha, José María; Gutiérrez Huerta, María José; Villasante, Sebastián (University of the Basque Country, Department of Foundations of Economic Analysis II, 2013)
      Global warming of the oceans is expected to alter the environmental conditions that determine the growth of a fishery resource. Most climate change studies are based on models and scenarios that focus on economic growth, ...
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      Endogenous fisheries management in a stochastic model: Why do fishery agencies use TAC 

      Da Rocha, José María; Gutiérrez Huerta, María José (University of the Basque Country, Department of Foundations of Economic Analysis II, 2010-12)
      The aim of this paper is to explain under which circumstances using TACs as instrument to manage a fishery along with fishing periods may be interesting from a regulatory point of view. In order to do this, the deterministic ...
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      Endogenous Fishing Mortalities: a State-Space Bioeconomic Model 

      Da Rocha, José María; García-Cutrín, Javier; Gutiérrez Huerta, María José; Jardim, Ernesto (Oxford University Press, 2017-05-13)
      A methodology that endogenously determines catchability functions that link fi shing mortality with contemporaneous stock abundance is presented. We consider a stochastic age-structured model for a fishery composed by ...
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      Lessons from the northern hake long-term management plan: Could the economic assessment have accepted it? 

      Da Rocha, José María; Gutiérrez Huerta, María José (University of the Basque Country, Department of Foundations of Economic Analysis II, 2011-01)
      An economic expert working group (STECF/SGBRE-07-05) was convened in 2007 for evaluating the potential economic consequences of a Long-Term Management Plan for the northern hake. Analyzing all the scenarios proposed by ...
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      On the Benefits of Including Age-structure in Harvest Control Rules 

      Da Rocha, José María; Mato Amboage, Rosa (2014-08-27)
      This paper explores the benefits of including age-structure in the control rule (HCR) when decision makers regard their (age-structured) models as approximations. We find that introducing age structure into the HCR reduces ...
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      Pulse vs. Optimal Stationary Fishing: The Northern Stock of Hake 

      Da Rocha, José María; Gutiérrez Huerta, María José; Taboada Antelo, Luis (University of the Basque Country, Department of Foundations of Economic Analysis II, 2011-11)
      Pulse fishing may be a global optimal strategy in multicohort fisheries. In this article we compare the pulse fishing solutions obtained by using global numerical methods with the analytical stationary optimal solution. ...
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      Reconciling yield stability with international fisheries agencies precautionary preferences: the role of non constant discount factors in age structured models 

      Da Rocha, José María; García-Cutrín, Javier; Gutiérrez Huerta, María José; Touza, Julia (2015)
      International fisheries agencies recommend exploitation paths that satisfy two features. First, for precautionary reasons exploitation paths should avoid high fishing mortality in those fisheries where the biomass is ...
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      Reference Points and Optimal Management in Stochastic Age-Structured Fisheries Models 

      Da Rocha, José María; Gutiérrez Huerta, María José (University of the Basque Country, Department of Foundations of Economic Analysis II, 2009-07)
      The purpose of this article is to characterize dynamic optimal harvesting trajectories that maximize discounted utility assuming an age-structured population model, in the same line as Tahvonen (2009). The main novelty of ...
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      Reference Points Based on Dynamic Optimisation: A Versatil Algorithm for Mixed Fishery Management with Bio-economic Agestructured Models 

      Da Rocha, José María; Gutiérrez Huerta, María José; Cerviño, Santiago (University of the Basque Country, Department of Foundations of Economic Analysis II, 2012)
      Single-species management objectives may not be consistent within mixed fisheries. They may lead species to unsafe situations, promote discarding of over-quota and/or misreporting of catches. We provide an algorithm for ...
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      Selectivity, pulse fishing and endogenous lifespan in Beverton-Holt models 

      Da Rocha, José María; Gutiérrez Huerta, María José; Antelo, Luis T. (University of the Basque Country, Department of Foundations of Economic Analysis II, 2012)
      Optimal management in a multi-cohort Beverton-Holt model with any number of age classes and imperfect selectivity is equivalent to finding the optimal fish lifespan by chosen fallow cycles. Optimal policy differs in two ...
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      The Evaluation of Fisheries Management: A Dynamic Stochastic Approach 

      Gutiérrez Huerta, María José; Da Rocha, José María (University of the Basque Country, Department of Foundations of Economic Analysis II, 2003-03)
      In this article, we analyze how to evaluate fishery resource management under “ecological uncertainty”. In this context, an efficient policy consists of applying a different exploitation rule depending on the state of the ...
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      The Optimality of the Common Fisheries Policy: the Northern Stock of Hake 

      Gutiérrez Huerta, María José; Da Rocha, José María (University of the Basque Country, Department of Foundations of Economic Analysis II, 2002)
      We evaluate the management of the Northern Stock of Hake during 1986-2001. A stochastic bioeconomic model is calibrated to match the main features of this fishing ground. We show how catches, biomass stock and profits ...
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      Why Economists Reject Long-Term Fisheries Management Plans? 

      Da Rocha, José María; Gutiérrez Huerta, María José (University of the Basque Country, Department of Foundations of Economic Analysis II, 2009-08)
      Most fisheries agencies conduct biological and economic assessments independently. This independent conduct may lead to situations in which economists reject management plans proposed by biologists. The objective of this ...