class: center, middle background-color: white .title[Anti-Social Networks:] .subtitle[How Cooperative Networks Help and Constrain Violent Groups] .author[Laila A. Wahedi] .date[February 23, 2018] .institution[McCourt School of Public Policy, Georgetown University]
.center[] .footnote[Created with [{Remark.js}](http://remarkjs.com/) using [{Markdown}](https://daringfireball.net/projects/markdown/) + [{MathJax}](https://www.mathjax.org/) + [{Liminal}](http://www.jmlilly.net/liminal.zip)] --- class: center background-color:#AF002B .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Terrorist Groups Don't Act Alone:
Train
Trade
Work
Together
--- class: center, .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
What's good for AQIM...
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Is good for al Qaeda...
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And good for al Shabaab
--- class: center, .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
But what's bad for one can hurt the rest
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These chains compound:
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Puzzle:
# How do patterns of partnerships constrain and enable violent groups? --- class: center background-color: #9BC53D .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Centralization:
## Extent to which one group has more influence than others within the network
--- class: center background-color: #01BAEF .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Decentralized:
Redundant Paths:
Autonomy
Robust to Random Removal
--- class: center background-color: #AF002B .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Decentralized:
Inefficient
Free Riding
Vulnerable to Unraveling
--- class: center background-color: #01BAEF .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Centralized:
Information Shortcuts
Efficient
Robust to Random Removal
--- class: center background-color: #AF002B .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Centralized:
Costly for Center
Periphery Loses Freedom
Vulnerable to Targeted Removal
--- class: center background-color: #b75aa0 .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Centralized:
Specialization
Periphery Loses Freedom
Vulnerable to Targeted Removal
--- class: center background-color: #5759b3 .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Centralized:
Specialization
Periphery Trades For Efficiency
Vulnerable to Targeted Removal
--- class: center background-color: #01BAEF .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Centralized:
Specialization
Periphery Trades For Efficiency
Evolves Around Strong Core
--- class: center, background-color: #F2DC5D .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Empirical Implications
Groups in centralized local networks should
be more effective
.
--- class: left, background-color: White .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Empirics
Variables:
DV: Capacity for violence
EV: Structure of local partnership network
Data:
Lethality: Terrorism Knowledge Base
Partnerships: Big Allied And Dangerous Dataset
Model
* Zero-inflated negative binomial regression * Hierarchical --- class: center, .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Results
Groups in centralized local networks kill more people, and conduct more attacks
* Controlling for how well connected the group is * Controlling for the size of the network --- class: center, .footnote[ Laila A. Wahedi -- Follow along at Wahedi.US, under Current Presentation -- law98@georgetown.edu]
Backup
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Centralization
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Eigenvector Centrality
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Lethality
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