The type of goodwill that givers like Rifkin build is the subject of fascinating research. Traditionally, social network researchers map information exchange: the flows of knowledge from person to person. But when Wayne Baker collaborated with University of Virginia professor Rob Cross and IBM’s Andrew Parker, he realized that it was also possible to track the flows of energy through networks. In a range of organizations, employees rated their interactions with one another on a scale from strongly de-energizing to strongly energizing. The researchers created an energy network map, which looked
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