Using more than 35 years of US survey data, some researchers found Americans were happier in years of lower income inequality — and the link seemed to run not through money, but through how fair and trustworthy others felt
In 2011, three researchers published a paper in Psychological Science that did something unusual with one of the longest-running datasets in American social science. Shigehiro Oishi and Selin Kesebir, then at the University of Virginia, and Ed Diener, at the University of Illinoi…