Mobile communication and strong network ties: Shrinking or expanding spheres of public discourse?

<jats:p>This study tests theoretical propositions that intensive mobile communication in small networks of like-minded strong ties hinders open dialogue with others. Using multi-wave panel data from a representative sample of adults in the US, the study found that reported levels of open dialogue decreased slightly with mobile-mediated political discussion in small and like-minded strong-tie networks. Interestingly, a more pronounced positive effect was found for mobile-mediated discussion in larger networks of like-minded close ties. In this case, open dialogue was facilitated by mobile-mediated discussion, revealing potential for mobile communication among close personal ties to expand spheres of public discourse and deliberation. Theoretical implications and directions for future research are offered in the discussion.</jats:p>