Are happy people all alike?

Dr. Will M. Dennis coauthored a recently published study in which the more general hypothesis that people who share some positive individual-difference trait are more alike than those who do not (The Convergence of Positivity Hypothesis) was tested and supported by empirical evidence. In the article, the authors speculate about why this pattern might exist and whether it extends beyond individual differences to a broader set of complex systems.

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Iveta Hlouchová