Selected Publications

The growing multitude of sophisticated event-level data collection enables novel analyses of conflict. Even when multiple event data sets are available, researchers tend to rely on only one. We instead advocate integrating information from multiple event data sets. The advantages include facilitating analysis of relationships between different types of conflict, providing more comprehensive empirical measurement, and evaluating the relative coverage and quality of data sets. Existing integration efforts have been performed manually, with significant limitations. Therefore, we introduce Matching Event Data by Location, Time and Type (MELTT)—an automated, transparent, reproducible methodology for integrating event data sets. For the cases of Nigeria 2011, South Sudan 2015, and Libya 2014, we show that using MELTT to integrate data from four leading conflict event data sets (Uppsala Conflict Data Project–Georeferenced Event Data, Armed Conflict Location and Event Data, Social Conflict Analysis Database, and Global Terrorism Database) provides a more complete picture of conflict. We also apply multiple systems estimation to show that each of these data sets has substantial missingness in coverage.
Journal of Conflict Resolution, 2018

Do firm founders from nations with more predictable and transparent institutions allocate more autonomy to their employees? A cultural imprinting view suggests that institutions inculcate beliefs that operate beyond the environment in which those beliefs originate. We leverage data from a multiplayer online role-playing game, EVE Online, a setting where individuals can establish and run their own corporations. EVE players come from around the world, but all face the same institutional environment within the game. This setting allows us to disentangle, for the first time, cultural norms from the myriad other local factors that will influence organizational design choices across nations. Our main finding is that founders residing in nations with more predictable and transparent real world institutions delegate more authority within the virtual firms they create.
Strategy Science, 2018

Recent Publications

. Integrating Conflict Event Data. Journal of Conflict Resolution, 2018.

Code Project

. Cultural Imprinting, Institutions, and the Organization of New Firms. Strategy Science, 2018.

PDF Code Dataset

. The Geography of Organized Armed Violence around the World. Routledge, 2017.



Live Simulated Environments

We use use a massive multiplayer online game, Eve Online, to examine collective and individual level behavior cross-nationally at a highly granular level.

MELTT: Merging Event Data by Location Time and Type

We formalize a framework for merging and disambiguating event data based on spatiotemporal co-occurrence and secondary event characteristics in the R package, meltt. The package accounts for intrinsic ‘fuzziness’ in the coding of events, varying event taxonomies, and different geo-precision codes. The procedure and methodology seeks to assist researchers in bringing together disparate geospatial, temporally disaggregated event data.

Mapping Diplomatic Networks

In this project, we examine structural breaks in diplomatic meeting patterns as predictors for shifts in foreign policy.


I teach the following courses in the McCourt School of Public Policy:

  • PPOL561: Accelerated Statistics for Public Policy II

  • PPOL564: Foundations of Data Science

  • PPOL670: Introduction to Data Science for Public Policy