Benjamin Campbell

PhD Student
Graduate Student


Personal website:


Benjamin W. Campbell is a Doctoral Candidate and the Senior Fellow for the Program for Statistics and Methodology. He is a member of the Network Interdependence in Social Science (NISS) Lab.  His dissertation problematizes a foundational assumption of International Relations: states, motivated by a common threat, aggregate their capabilities to increase their security. Instead, he argues that states may form alliances to accomplish a variety of objectives, such as consolidating relationships or pushing allies to adopt political, economic, or human rights reforms.  To detect this latent variation in why states form military alliances, he develops a novel statistical method, the ego-Temporal Exponential Random Graph Model (ego-TERGM).  The tool allows the analyst to detect latent variation and heterogeneity in how actors construct their local network.  The manuscript introducing this method is forthcoming in Political Analysis and has software available on the Comprehensive R Archive Network.  

Benjamin has diverse interests that pull him to a variety of questions.  He has methodological interests in network analysis, survival analysis, time series analysis, and topic modeling and substantive interests in role analysis, security studies, alliance politics, and collective action.  His work has appeared in Political Analysis, Social Networks, PLOS ONE, and Addictive Behaviors.  Benjamin is also an active R programmer, maintaining both the "fergm" and "egoTERGM" packages available through CRAN.