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Title:Harvesting in an integrated general equilibrium model PDF Logo
Authors:Eichner, Thomas
Pethig, Rüdiger
Issue Date:2007
Series/Report no.:Volkswirtschaftliche Diskussionsbeiträge // Universität Siegen, Fachbereich Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht 127
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.
biomass price
Document Type:Working Paper
Appears in Collections:Volkswirtschaftliche Diskussionsbeiträge, Universität Siegen

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