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Harvesting in an integrated general equilibrium model

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Abstract

Harvesting of prey biomass is analyzed in an integrated ecological-economic system whose submodels, a predator-prey ecosystem and a simple economy, are microfounded dynamic general equilibrium models. These submodels are interdependent because the ecosystem responds to harvesting - through the reactions of optimizing individual organisms - by changing the provision of public ecosystem services to consumers. General analytical results are derived regarding the impact of harvesting policies on short-run equilibria of both submodels, on population dynamics, and on stationary states of the integrated model. A key insight is that prey biomass carries a positive ecosystem price which needs to be added as a tax mark-up to the economic price of harvested biomass to attain allocative efficiency. Further information on the dynamics is gained by resorting to numerical analysis of the policy regimes of zero harvesting, laissez-faire harvesting and efficient harvesting.

Suggested Citation

  • Thomas Eichner & Rüdiger Pethig, 2007. "Harvesting in an integrated general equilibrium model," Volkswirtschaftliche Diskussionsbeiträge 127-07, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
    • Handle: RePEc:sie:siegen:127-07
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    1. Eichner, Thomas & Pethig, Rüdiger, 2009. "Pricing the ecosystem and taxing ecosystem services: A general equilibrium approach," Journal of Economic Theory, Elsevier, vol. 144(4), pages 1589-1616, July.
    2. Thomas Christiaans & Thomas Eichner & Rüdiger Pethig, 2005. "A Micro-Level 'Consumer Approach' to Species Population Dynamics," CESifo Working Paper Series 1530, CESifo.
    3. Thomas Eichner & Rüdiger Pethig, 2006. "An Analytical Foundation of the Ratio-Dependent Predator-Prey Model," Journal of Bioeconomics, Springer, vol. 8(2), pages 121-132, August.
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    5. Thomas Eichner & Rüdiger Pethig, 2003. "The impact of scarcity and abundance in food chains on species population dynamics," Volkswirtschaftliche Diskussionsbeiträge 109-03, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
    6. Thomas Eichner & Rüdiger Pethig, 2003. "A Microfoundation of Predator-Prey Dynamics," Volkswirtschaftliche Diskussionsbeiträge 110-03, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
    7. David Finnoff & John Tschirhart, 2003. "Protecting an Endangered Species While Harvesting Its Prey in a General Equilibrium Ecosystem Model," Land Economics, University of Wisconsin Press, vol. 79(2), pages 160-180.
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    9. Hoekstra, Jeljer & van den Bergh, Jeroen C.J.M., 2005. "Harvesting and conservation in a predator-prey system," Journal of Economic Dynamics and Control, Elsevier, vol. 29(6), pages 1097-1120, June.
    10. Wolfgang Ströbele & Holger Wacker, 1995. "The economics of harvesting predator-prey systems," Journal of Economics, Springer, vol. 61(1), pages 65-81, February.
    11. Finnoff, David & Tschirhart, John, 2003. "Harvesting in an eight-species ecosystem," Journal of Environmental Economics and Management, Elsevier, vol. 45(3), pages 589-611, May.
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    2. Ian Bateman & Edward Barbier & Scott Barrett, 2007. "Introduction to the special issue in honour of David W. Pearce: environmental economics and policy," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 37(1), pages 1-6, May.
    3. Mardones D., Cristián, 2012. "Chile: building a computable general equilibrium model with an application to the Bío Bío region," Revista CEPAL, Naciones Unidas Comisión Económica para América Latina y el Caribe (CEPAL), April.
    4. Hussain, A.M. Tanvir & Tschirhart, John, 2013. "Economic/ecological tradeoffs among ecosystem services and biodiversity conservation," Ecological Economics, Elsevier, vol. 93(C), pages 116-127.
    5. Giles Atkinson & Kirk Hamilton, 2007. "Progress along the path: evolving issues in the measurement of genuine saving," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 37(1), pages 43-61, May.
    6. Frank Convery, 2007. "Making a difference — how environmental economists can influence the policy process — a case study of David W Pearce," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 37(1), pages 7-32, May.
    7. Negar Akbari & Pierre Failler & Haoran Pan & Benjamin Drakeford & Andy Forse, 2023. "The Impact of Fisheries on the Economy: A Systematic Review on the Application of General Equilibrium and Input–Output Methods," Sustainability, MDPI, vol. 15(7), pages 1-17, March.
    8. Haoran Pan & Pierre Failler & Qianyi Du & Christos Floros & Loretta Malvarosa & Emmanuel Chassot & Vincenzo Placenti, 2022. "An Inter-Temporal Computable General Equilibrium Model for Fisheries," Sustainability, MDPI, vol. 14(11), pages 1-23, May.
    9. Jean-Philippe Barde, 2007. "Harnessing the political economy of environmental policy: David Pearce’s contribution to OECD," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 37(1), pages 33-42, May.

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    More about this item

    Keywords

    predator; prey; biomass price; harvesting;
    All these keywords.

    JEL classification:

    • Q20 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - General
    • Q57 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Ecological Economics

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