The Game Theory of Marriage Timing: Desirability Shifts and Commitment Decisions

This episode of Psychacks explores the intriguing question of why people tend to get married when they do, proposing an elegant theory substantiated by data from various frameworks. Building on a previous episode, \"Peak sexual Marketplace value,\" the host, Dr. Orion Taraban, references a study on heterosexual desirability indices from dating app data. This data indicated that, from men's perspective, women are most desirable at 18, while from women's perspective, men are most desirable at 50. The core of the theory lies in the observation that while women's desirability starts high and falls, and men's starts low and rises, there's a critical crossover point when these average desirability lines intersect.\n\nDr. Taraban's central hypothesis is that this crossover point occurs around age 30. At this juncture, the average woman's sexual marketplace value drops below the average man's for the first time. From this point onward, a woman's desirability is framed as a depreciating asset, while a man's is an appreciating one. This fundamental shift in relative desirability is posited to significantly alter dating dynamics, making the period around age 30 a pivotal moment in the sexual marketplace for both genders. The host argues that this shift provides a rational explanation for observed marriage patterns.\n\nThe theory is further supported by U.S. Census data from 2021, which shows the median age for women at first marriage as 29 and for men as 30. This alignment suggests that marriage typically occurs precisely at or just before the point where women's average desirability superiority over men diminishes. From a pure Game Theory perspective, securing a lifetime commitment while the desirability gap still favors her is presented as an optimal and rational move for a woman, as it becomes increasingly difficult to do so with men of comparable quality as time progresses. This strategic timing allows women to dictate more favorable terms in the relationship.\n\nTo test this hypothesis, two falsifiable predictions are proposed: first, that in different cultures, women's age at first marriage will consistently occur just before the desirability gap switches; and second, that in no culture will women's age at first marriage exceed this crossover age. The episode concludes by challenging the stereotype of women as the "irrational sex," suggesting that the data-driven timing of marriage demonstrates a highly rational and strategic approach to relationship formation. The implications extend to understanding fundamental gender dynamics and decision-making in long-term partnerships.

according to men women are most desirable at 18 years old and according to women men are most desirable at 50 years old

this point marks the moment when the average woman's desirability her normalized sexual Marketplace value drops below the average man's desirability his normalized sexual Marketplace value for the very first time

From that point on a woman's desirability is a depreciating asset and a man's desirability is an appreciating asset

the dating game changes significantly after 30. and this might be why

the median age for women at first marriage was 29. in the median age for men at first marriage was 30

marriage typically occurs at the last moment that women enjoy a superiority over men in terms of average desirability

securing a lifetime commitment while the desirability Gap still favors her is clearly in the woman's best interests

all women play Blackjack they want to get as close to 21 the bus card as they can without going over

if a woman perceives that her desirability is likely to soon fall below a man's desirability the decision to push for commitment at that time is entirely rational and in her best interests

people say women are the irrational sex if that were true this is not what the data would look like