Reconciling long-term cultural diversity and short-term collective social behavior

@article{Valori2012ReconcilingLC,
  title={Reconciling long-term cultural diversity and short-term collective social behavior},
  author={Luca Valori and Francesco Picciolo and Agnes Allansdottir and Diego Garlaschelli},
  journal={Proceedings of the National Academy of Sciences},
  year={2012},
  volume={109},
  pages={1068 - 1073}
}
An outstanding open problem is whether collective social phenomena occurring over short timescales can systematically reduce cultural heterogeneity in the long run, and whether offline and online human interactions contribute differently to the process. Theoretical models suggest that short-term collective behavior and long-term cultural diversity are mutually excluding, since they require very different levels of social influence. The latter jointly depends on two factors: the topology of the… 

Figures from this paper

Structural Properties of Realistic Cultural Space Distributions
TLDR
This work shows that the restoration patterns are largely robust across data sets, and provides a possible mechanism explaining the restoration, for the special case when the cultural space is formulated only in terms of nominal variables.
Signs of universality in the structure of culture
Abstract Understanding the dynamics of opinions, preferences and of culture as whole requires more use of empirical data than has been done so far. It is clear that an important role in driving this
Ultrametricity increases the predictability of cultural dynamics
TLDR
It is found that, as compared to random and shuffled initial conditions, the hierarchical ultrametric-like organization of empirical cultural states significantly increases the predictability of the final social content by largely confining cultural convergence within the lower levels of the hierarchy.
Social Influence and the Collective Dynamics of Opinion Formation
TLDR
An influence map is drawn that describes the strength of peer influence during interactions and identifies two major attractors of opinion: the expert effect, induced by the presence of a highly confident individual in the group, and the majority effect, caused by a critical mass of laypeople sharing similar opinions.
Robust multiculturality emerges from layered social influence
TLDR
This work shows that the observed persistence of multiculturality in real-world social systems is a natural consequence of the layered organisation of social influence, and finds that the critical number of cultural traits that separates the monocultural and the multicultural regimes depends on the redundancy of pairwise connections across layers.
A random matrix perspective of cultural structure: groups or redundancies?
TLDR
It is shown that a deviating eigenvalue can indeed be a redundancy signature, which can be distinguished from a grouping signature by evaluating the uniformity of the entries of the respective eigenvector, as well as the Uniformity-based compatibility with the null model.
A random matrix perspective of cultural structure
TLDR
This study shows that a deviating eigenvalue, such as those observed for empirical data, can also be induced by correlations alone, and proposes a null model that enforces, on average, the empirical occurrence frequency of each possible trait.
A random matrix perspective of cultural structure: groups or redundancies?
Recent studies have highlighted interesting properties of empirical cultural states—collections of cultural trait sequences of real individuals. Matrices of similarity between individuals may be
Evidence for mixed rationalities in preference formation
TLDR
It is shown that both ingredients are required for reproducing the empirical regularities of the effects of cultural dynamics in the real world, providing indirect evidence for the class of social science theories postulating such a mixing.
...
1
2
3
4
...

References

SHOWING 1-10 OF 94 REFERENCES
Multirelational organization of large-scale social networks in an online world
TLDR
This work presents the first empirical large-scale verification of the long-standing structural balance theory, by focusing on the specific multiplex network of friendship and enmity relations, and explores how the interdependence of different network types determines the organization of the social system.
Spontaneous emergence of social influence in online systems
TLDR
It is demonstrated that even when external signals are absent, social influence can spontaneously assume an on–off nature in a digital environment.
Group formation in large social networks: membership, growth, and evolution
TLDR
It is found that the propensity of individuals to join communities, and of communities to grow rapidly, depends in subtle ways on the underlying network structure, and decision-tree techniques are used to identify the most significant structural determinants of these properties.
Cooperative behavior cascades in human social networks
TLDR
This work exploits a seminal set of laboratory experiments that originally showed that voluntary costly punishment can help sustain cooperation to show experimentally that cooperative behavior cascades in human social networks.
Individualization as Driving Force of Clustering Phenomena in Humans
TLDR
A new model can explain cultural clustering in human societies by combining the integrative tendencies of social influence with the disintegrative effects of individualization, and is robust to “noise”—randomness is actually the central mechanism that sustains pluralism and clustering.
Cooperation Prevails When Individuals Adjust Their Social Ties
TLDR
These results show that simple topological dynamics reflecting the individual capacity for self-organization of social ties can produce realistic networks of high average connectivity with associated single-to-broad–scale heterogeneity and heterogeneity is found to become maximal when W reaches its critical value.
Measuring social dynamics in a massive multiplayer online game
Birds of a Feather: Homophily in Social Networks
Similarity breeds connection. This principle—the homophily principle—structures network ties of every type, including marriage, friendship, work, advice, support, information transfer, exchange,
Robust dynamic classes revealed by measuring the response function of a social system
TLDR
The relaxation response of a social system after endogenous and exogenous bursts of activity is studied using the time series of daily views for nearly 5 million videos on YouTube to provide a unique framework for the investigation of timing in complex systems.
Local convergence and global diversity: The robustness of cultural homophily: http://arxiv.org/abs/physics/0701333 (arXiv.org, online preprint service Cornell University Library).
TLDR
This book argues that cultural diversity is both persistent and precarious and that even in compact networks some diversity may remain if actors’ initial opinions reflect persistent individual interests that are entirely neutralized by outside influences.
...
1
2
3
4
5
...