A Bioeconomic Foundation of the Malthusian Equilibrium: Body Size and Population Size in the Long-Run

Carl-Johan Dalgaard and Holger Strulik

Hannover Economic Papers (HEP) from Leibniz Universität Hannover, Wirtschaftswissenschaftliche Fakultät

Abstract: This paper develops a bioeconomic Malthusian growth model. By integrating recent research on allometric scaling, energy consumption and ontogenetic growth, we provide a model where subsistence consumption is endogenously linked to body size and fertility. The theory admits a unique Malthusian equilibrium in a two-dimensional state space characterized by population density and body size (metabolic rate) of the representative adult. As a result, the analysis allows us to examine the link between human biology, economic productivity, body size, and population size. Off the steady-state we investigate the possibility of cyclical behavior of the size of a population and the size of its representative member over the very long-run. We also demonstrate that a take-off into sustained growth should be associated with increasing income, population size and body size. The increase in the latter is, however, bounded and can be viewed as convergence to a biologically determined upper limit.

Keywords: Subsistence; Nutrition; Metabolism; Population Growth; Ontogenetic Growth; Malthus (search for similar items in EconPapers)
JEL-codes: I12 J13 O11 (search for similar items in EconPapers)
Pages: 38 pages
Date: 2007-08
New Economics Papers: this item is included in nep-hea
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (14)

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