A Conceptual Model for the Prediction of Sexual Intercourse in Permanent Couples
The problem of the frequency of sexual intercourse in couples was investigated for the first time with a purely conceptual model. The model, based on a few axioms involving the notions of sexual appetite and erotic potential, was composed of two ordinary differential equations which turn out to be the same as those proposed almost one century ago in epidemiology. The model can be used to discuss the possibility of estimating strategic parameters from real data, as well as to criticize the rule of “the beans in the jar” proposed by Martin (1970).
KeywordsMathematical models Conceptual models Frequency of intercourse Sexual appetite Erotic potential Martin’s law
- Cresswell, C. (2003). Mathematics and sex. Crows Nest, Australia: Allen and Unwin.Google Scholar
- Dercole, F. (1999). A modeling interpretation of the novel “Jules et Jim”. Unpublished Master’s thesis, Politecnico di Milano, Milano, Italy.Google Scholar
- Kermack, W., & McKendrick, A. (1991). Contributions to the mathematical-theory of epidemics .1. Bulletin of Mathematical Biology, 53, 33–55. (Originally published in Proceedings of the Royal Society, 1927, 115a, 700–721)Google Scholar
- Sprott, J. C. (2004). Dynamical models of love. Nonlinear Dynamics, Psychology and Life Sciences, 8, 303–315.Google Scholar
- Strogatz, S. H. (1994). Nonlinear dynamics and chaos: With applications to physics, biology, chemistry, and engineering (studies in nonlinearity).. Boston: Addison Wesley.Google Scholar