Rose McDermott, Nicholas Christakis, and James Fowler have recently posted their fascinating paper “Breaking Up is Hard to Do, Unless Everyone Else is Doing it Too: Social Network Effects on Divorce in a Longitudinal Sample Followed for 32 Years” on SSRN. Here’s the abstract.
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Divorce is the dissolution of a social tie, but it is also possible that attitudes about divorce flow across social ties. To explore how social networks influence divorce and vice versa, we utilize a longitudinal data set from the long-running Framingham Heart Study. We find that divorce can spread between friends, siblings, and coworkers, and there are clusters of divorcees that extend two degrees of separation in the network. We also find that popular people are less likely to get divorced, divorcees have denser social networks, and they are much more likely to remarry other divorcees. Interestingly, we do not find that the presence of children influences the likelihood of divorce, but we do find that each child reduces the susceptibility to being influenced by peers who get divorced. Overall, the results suggest that attending to the health of one’s friends’ marriages serves to support and enhance the durability of one’s own relationship, and that, from a policy perspective, divorce should be understood as a collective phenomenon that extends far beyond those directly affected.
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You can download the paper for free here. For a sample of related Situationist posts, see “Social Networks,” “Common Cause: Combating the Epidemics of Obesity and Evil,” “Situational Obesity, or, Friends Don’t Let Friends Eat and Veg,” “Smile If You Love Your Future Relationships,” and “Deterring Divorce through Major League Baseball?.”