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Prey-producing predators: the ecology of human intensification


Efferson, C (2008). Prey-producing predators: the ecology of human intensification. Nonlinear Dynamics, Psychology, and Life Sciences, 12(1):55-74.

Abstract

Economic growth theory and theoretical ecology represent independent traditions of modeling aggregate consumer-resource systems. Both focus on different but equally important forces underlying the dynamics of human societies. Though the two traditions have unknowingly converged in some ways, they each have curious conventions from the perspective of the other. These conventions are reviewed, and two separate modeling frameworks that integrate the two traditions in a simple and straightforward fashion are developed and analyzed. The resulting models represent a consumer species (e.g. humans) that both produces and consumes its resources and then
reproduces biologically according to the consumption of its resources. Depending on the balance between production, consumption, and reproduction, the models can exhibit
stagnant behavior, like some predator-prey models, or growth, like many mutualism and economic growth models. When growth occurs, in the long term it takes one of two
forms. Either resources per capita grow and the human population size converges to a constant, which may be zero, or resources per capita converge to a constant and the
human population grows. The difference depends on initial conditions and the particular mix of biological conditions and human technology.

Economic growth theory and theoretical ecology represent independent traditions of modeling aggregate consumer-resource systems. Both focus on different but equally important forces underlying the dynamics of human societies. Though the two traditions have unknowingly converged in some ways, they each have curious conventions from the perspective of the other. These conventions are reviewed, and two separate modeling frameworks that integrate the two traditions in a simple and straightforward fashion are developed and analyzed. The resulting models represent a consumer species (e.g. humans) that both produces and consumes its resources and then
reproduces biologically according to the consumption of its resources. Depending on the balance between production, consumption, and reproduction, the models can exhibit
stagnant behavior, like some predator-prey models, or growth, like many mutualism and economic growth models. When growth occurs, in the long term it takes one of two
forms. Either resources per capita grow and the human population size converges to a constant, which may be zero, or resources per capita converge to a constant and the
human population grows. The difference depends on initial conditions and the particular mix of biological conditions and human technology.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:03 Faculty of Economics > Department of Economics
Dewey Decimal Classification:330 Economics
Language:English
Date:January 2008
Deposited On:20 Nov 2008 14:03
Last Modified:05 Apr 2016 12:28
Publisher:Society for Chaos Theory in Psychology & Life Sciences
ISSN:1090-0578
Official URL:http://www.societyforchaostheory.org/ndpls/
Permanent URL: http://doi.org/10.5167/uzh-3944

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