Conference Proceedings by M. Macy
There has been significant growth in online social science experiments in order to understand beh... more There has been significant growth in online social science experiments in order to understand behavior at-scale, with finer-grained data collection. Considerable work is required to perform data analytics for custom experiments. We also seek to perform repeated networked experiments and modeling in an iterative loop. In this work, we design and build four composable and extensible automated software pipelines for (1) data analytics; (2) model property inference; (3) model/simulation; and (4) results analysis and comparisons between experimental data and model predictions. We design a formal data model to which experiments and models must conform, for reasoning about them. Our data model is for scenarios where subjects can repeat actions (from a set) any number of times over the game duration. Because the types of interactions and action sets are flexible, this class of experiments is large. Two case studies, on collective identity and complex contagion, illustrate use of the system.
Papers by M. Macy
Science, 2010
Social networks form the backbone of social and economic life. Until recently, however, data have... more Social networks form the backbone of social and economic life. Until recently, however, data have not been available to study the social impact of a national network structure. To that end, we combined the most complete record of a national communication network with national census data on the socioeconomic well-being of communities. These data make possible a population-level investigation of the relation between the structure of social networks and access to socioeconomic opportunity. We find that the diversity of individuals' relationships is strongly correlated with the economic development of communities.
In The Clash of Civilizations, Samuel Huntington argued that the primary axis of global conflict ... more In The Clash of Civilizations, Samuel Huntington argued that the primary axis of global conflict was no longer ideological or economic but cultural and religious, and that this division would characterize the "battle lines of the future." In contrast to the "top down" approach in previous research focused on the relations among nation states, we focused on the flows of interpersonal communication as a bottom-up view of international alignments. To that end, we mapped the locations of the world's countries in global email networks to see if we could detect cultural fault lines. Using IPgeolocation on a worldwide anonymized dataset obtained from a large Internet company, we constructed a global email network. In computing email flows we employ a novel rescaling procedure to account for differences due to uneven adoption of a particular Internet service across the world. Our analysis shows that email flows are consistent with Huntington's thesis. In addition to location in Huntington's "civilizations," our results also attest to the importance of both cultural and economic factors in the patterning of inter-country communication ties.
... The norm becomes self-enforcing. 4. Unpopular Norms: A Game Theoretic Explanation ... the pro... more ... The norm becomes self-enforcing. 4. Unpopular Norms: A Game Theoretic Explanation ... the prospect of sanctioning a credible threat. When a norm is supported by a metanorm to punish ... of the dynamics of embedded games. 7.1 Effects of embeddedness in spatial networks ...
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Conference Proceedings by M. Macy
Papers by M. Macy