NEATS: A Network Economics Approach to Trophic Systems

Christian Mullon, Yunne Shin and Philippe Cury

Ecological Modelling, 2009, vol. 220, issue 21, 3033-3045

Abstract: The main principle of the economic approach to a trophic system we propose here lies in assuming that there is a transfer of food along a path between a prey and a predator if, for the predator, the benefits are greater than costs of predation on this path. Conversely, if the costs exceed the benefits, there are no flows. This trade-off, considered all along the food chains of an ecosystem, together with ecological processes (assimilation, somatic maintenance) results in a model coupling mass balance equations (biological constraints) and complementarity principles (Walras’ law). Here is the core of the Network Economics Approach to Trophic Systems (NEATS).

Keywords: Food web; Marine ecosystem; Economic equilibrium; Variational inequality (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:220:y:2009:i:21:p:3033-3045

DOI: 10.1016/j.ecolmodel.2009.02.008

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