This is essentially one of the first modern theories of communication, articulat...

		joe_the_user on Oct 10, 2015 \| parent \| context \| favorite \| on: A simple puzzle to tell whether you know what peop... This is essentially one of the first modern theories of communication, articulated by Lazarsfeld and Katz in the 1940s. https://en.wikipedia.org/wiki/Two-step_flow_of_communication