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A dynamic model of biodiversity preservation

Published online by Cambridge University Press:  30 March 2001

CHUAN-ZHONG LI  and
KARL-GUSTAF LÖFGREN
CHUAN-ZHONG LI
Affiliation:
Department of Economics, University of Umeå, S-901 87 Umeå, Sweden
KARL-GUSTAF LÖFGREN
Affiliation:
Department of Economics, University of Umeå, S-901 87 Umeå, Sweden
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Abstract

This paper attempts to develop a dynamic model of optimal biodiversity preservation in a stylized ecosystem. Species richness (number of species) is used as a measure of diversity and its interactions with the resource stock, consumptive extraction and preservation efforts are explored using a two-state variable optimal control model. The analysis extends to the implications of a random threshold in species richness and the relationship between ecological and economic stability conditions. Dynamic paths and equilibrium characteristics are illustrated using numerical techniques.

Type
Theory and applications
Information
Environment and Development Economics , Volume 3 , Issue 2 , May 1998 , pp. 157 - 172
Copyright
© 1998 Cambridge University Press

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