The University of Maryland published a press release about our paper on mobility and ethnocentrism: Moving Matters: Ethnocentric Behavior Decreases When Societal Mobility Rises.
The work highlights a hopeful finding: ethnocentric behavior is not inevitable, and increasing societal mobility can shift interactions away from rigid group-based behavior and toward treating others more as individuals.
The underlying paper is: The inevitability of ethnocentrism revisited: Ethnocentrism diminishes as mobility increases, by Soham De, Michele J. Gelfand, Dana Nau, and Patrick Roos, published in Scientific Reports in 2015.