The last estimate we found for the influence of smoking habits by a spouse was 40 percent, meaning the spouse of a person who quits is 40 percent more likely to quit as well. A new study, of a 30-year social network comprised of 12,000 people (the same one used to study obesity), authored by a Harvard medical professor and a UC-San Diego political scientists, estimates spousal influence at almost 70 percent! Even having a co-worker who quits increased a person’s chance of quitting by 34 percent.
Cass Sunstein is currently the Administrator of the White House Office of Information and Regulatory Affairs and has no affiliation with the Nudge blog.
The Nudge blog is edited by John Balz.
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What is Choice Architecture?
For a user-friendly introduction to choice architecture, check out this paper.