Small Worlds and Cultural Polarization

Authored by Andreas Flache, Michael W. Macy

Date Published: 2011

DOI: 10.1080/0022250x.2010.532261

Sponsors: Netherlands Organization for Scientific Research (NWO)

Platforms: No platforms listed

Model Documentation: Other Narrative Mathematical description

Model Code URLs: Model code not found

Abstract

Building on Granovetter's theory of the “strength of weak ties,” research on “small-world” networks suggests that bridges between clusters in a social network (long-range ties) promote cultural diffusion, homogeneity, and integration. We show that this macro-level implication of network structure depends on hidden micro-level assumptions. Using a computational model similar to earlier studies, we find that ties between clusters facilitate cultural convergence under the micro-level assumptions of assimilation and attraction to similar others. However, these assumptions also have negative counterparts-differentiation and xenophobia. We found that when these negative possibilities are no longer assumed away, the effect of long-range ties reverses: Even very small amounts of contact between highly clustered communities sharply increased polarization at the population level.

Tags

Agent-based models Social influence micro-macro link polarization Cultural Dynamics Small-world networks