POPULATION EVOLUTION MODEL WITH THE WEALTH OF THE INDIVIDUAL BASED ON PENNA MODEL

Mingfeng He (), Binglin Yu, Liyu Chen and Jian Fang
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Mingfeng He: Department of Applied Mathematics, Institute of University Students' Innovation, Dalian University of Technology, Dalian, 116024, China
Binglin Yu: Institute of University Students' Innovation, Dalian University of Technology, Dalian, 116024, China
Liyu Chen: Institute of University Students' Innovation, Dalian University of Technology, Dalian, 116024, China
Jian Fang: Institute of University Students' Innovation, Dalian University of Technology, Dalian, 116024, China

International Journal of Modern Physics C (IJMPC), 2005, vol. 16, issue 05, 807-814

Abstract: We present a simulation model based on the Penna model to study the population evolution. The wealth of the individual is considered in the model. We define increasing ratio α and decreasing ratio β of the wealth presenting the individual wealth variation, also define minimum wealthPROMOwhich works when one reproduces. We study the influence of α and β on a species' survival or downfall, and the influence ofPROMOon the age distribution of a species. According to the different values of α and β, we find diverse regimes where a species will survive or die out, and even the regime where species' survival or downfall are very sensitive. We study the relation between life expectancy and the wealth of the individual, finding that life expectancy doesn't increase but decrease a little when the wealth of the individual increases.

Keywords: The Penna model; the wealth of the individual; Monte-Carlo method (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1142/S0129183105007546

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