American Journal of Sociology 120(5)

American Journal of Sociology, March 2015: Volume 120, Issue 5

The Social Origins of Networks and Diffusion
Damon Centola

Recent research on social contagion has demonstrated significant effects of network topology on the dynamics of diffusion. However, network topologies are not given a priori. Rather, they are patterns of relations that emerge from individual and structural features of society, such as population composition, group heterogeneity, homophily, and social consolidation. Following Blau and Schwartz, the author develops a model of social network formation that explores how social and structural constraints on tie formation generate emergent social topologies and then explores the effectiveness of these social networks for the dynamics of social diffusion. Results show that, at one extreme, high levels of consolidation can create highly balkanized communities with poor integration of shared norms and practices. As suggested by Blau and Schwartz, reducing consolidation creates more crosscutting circles and significantly improves the dynamics of social diffusion across the population. However, the author finds that further reducing consolidation creates highly intersecting social networks that fail to support the widespread diffusion of norms and practices, indicating that successful social diffusion can depend on moderate to high levels of structural consolidation.

Go with Your Gut: Emotion and Evaluation in Job Interviews
Lauren A. Rivera

This article presents hiring as an emotional process rooted in interpersonal evaluation. Drawing from Randall Collins’s theory of interaction ritual, the author offers a qualitative case study of elite professional service firms to unpack how employers’ emotional reactions to applicants in job interviews affect hiring evaluations. She finds that employers use subjective feelings of excitement and enthusiasm toward candidates—akin to Collins’s concept of emotional energy—to evaluate applicants and make hiring decisions. With these data, she constructs an original theoretical framework of emotional energy development, which highlights the qualities that tend to produce or inhibit the subjective experience of emotional energy in job interviews. Additionally, she outlines the particular phases of an encounter where energy gains and losses are most consequential for influencing hiring outcomes and inequalities. She discusses the implications of these findings for research on hiring, labor market stratification, and interaction rituals.

Do Reputation Systems Undermine Trust? Divergent Effects of Enforcement Type on Generalized Trust and Trustworthiness
Ko Kuwabara

Research shows that enforcing cooperation using contracts or tangible sanctions can backfire, undermining people’s intrinsic motivation to cooperate: when the enforcement is removed, people are less trusting or trustworthy than when there is no enforcement to begin with. The author examines whether reputation systems have similar consequences for generalized trust and trustworthiness. Using a web-based experiment simulating online market transactions (studies 1 and 2), he shows that reputation systems can reinforce generalized trust and trustworthiness, unlike contractual enforcement or relational enforcement based on repeated interactions. In a survey experiment (study 3), he finds that recalling their eBay feedback scores made participants more trusting and trustworthy. These results are predicated on the diffuse nature of reputational enforcement to reinforce perceptions of trust and trustworthiness. These results have implications for understanding how different forms of governance affect generalized trust and trustworthiness.

Reconceptualizing Agency within the Life Course: The Power of Looking Ahead
Steven Hitlin and Monica Kirkpatrick Johnson

Empirical treatments of agency have not caught up with theoretical explication; empirical projects almost always focus on concurrent beliefs about one’s ability to act successfully without sufficiently attending to temporality. The authors suggest that understanding the modern life course necessitates a multidimensional understanding of subjective agency involving (a) perceived capacities and (b) perceived life chances, or expectations about what life holds in store. The authors also suggest that a proper understanding of agency’s potential power within a life course necessitates moving beyond the domain-specific expectations more typical of past sociological work. Using the Youth Development Study, the authors employ a scale of general life expectations in adolescence to explore the potential influence of a general sense of optimistic life expectations in addition to the traditional approach on a range of important outcomes.

Why Do Liberals Drink Lattes?
Michael Macy, Daniel DellaPosta, and Yongren Shi

Popular accounts of “lifestyle politics” and “culture wars” suggest that political and ideological divisions extend also to leisure activities, consumption, aesthetic taste, and personal morality. Drawing on a total of 22,572 pairwise correlations from the General Social Survey (1972–2010), the authors provide comprehensive empirical support for the anecdotal accounts. Moreover, most ideological differences in lifestyle cannot be explained by demographic covariates alone. The authors propose a surprisingly simple solution to the puzzle of lifestyle politics. Computational experiments show how the self-reinforcing dynamics of homophily and influence dramatically amplify even very small elective affinities between lifestyle and ideology, producing a stereotypical world of “latte liberals” and “bird-hunting conservatives” much like the one in which we live.

Stress and Hardship after Prison
Bruce Western, Anthony A. Braga, Jaclyn Davis, and Catherine Sirois

The historic increase in U.S. incarceration rates made the transition from prison to community common for poor, prime-age men and women. Leaving prison presents the challenge of social integration—of connecting with family and finding housing and a means of subsistence. The authors study variation in social integration in the first months after prison release with data from the Boston Reentry Study, a unique panel survey of 122 newly released prisoners. The data indicate severe material hardship immediately after incarceration. Over half of sample respondents were unemployed, two-thirds received public assistance, and many relied on female relatives for financial support and housing. Older respondents and those with histories of addiction and mental illness were the least socially integrated, with weak family ties, unstable housing, and low levels of employment. Qualitative interviews show that anxiety and feelings of isolation accompanied extreme material insecurity. Material insecurity combined with the adjustment to social life outside prison creates a stress of transition that burdens social relationships in high-incarceration communities.