Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mathematical Modeling of Church Growth: A System Dynamics Approach   The possibility of using mathematics to model church growth is investigated
using ideas from population modeling. It is proposed that a major mechanism of
growth is through contact between religious enthusiasts and unbelievers, where
the enthusiasts are only enthusiastic for a limited period. After that period
they remain church members but less effective in recruitment. This leads to the
general epidemic model which is applied to a variety of church growth
situations. Results show that even a simple model like this can help understand
the way in which churches grow, particularly in times of religious revival.
This is a revised version of Hayward (1999) using System Dynamics and some
small modifications to the SIR model.

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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: math
5
The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat