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"A Theory of Extramarital Affairs," Journal of Political Economy, February 1978, 45-61.
pdf file (805KB), data used in the paper.

Abstract

In this paper a model is developed that explains the allocation of an individual's time among work and two types of leisure activities: time spent with spouse, and time spent with paramour. Data from two recent magazine surveys are available that can be used to test the predictions of the model regarding the determinants of time spent with paramour. The results of estimating the equation explaining time spent with paramour, by the Tobit estimator, are generally supportive of the model, although more evidence is needed before any definitive conclusions can be drawn. The model can also be applied to the allocation of time among other types of leisure activities.
Comments

This paper uses survey data from Psychology Today and Redbook to examine the determinants of time spent in extramartial affairs. On request I have sent the data to a number of people since the paper was published. The data can be obtained from the above file.

This paper uses the Tobit estimator in the empirical work, and in the process of doing the empirical work I developed an alternative way of computing Tobit estimates from Newton's method. This work is discussed in 1977#1.