Substate Nationalism in the Age of the Nation-StatE

My dissertation project, “Substate Nationalism in the Age of the Nation-state,” focuses on understanding rising substate nationalism in Spain and the United Kingdom, where recent referenda on independence in Catalonia and Scotland have so dramatically asserted the substate community’s right to decide its own fate. In each of three papers, I grapple with substate nationalism from a different perspective, first scrutinizing its effect on individual political attitudes, then asking how it influences more comprehensive measures of ideology, and finally considering the causes of rising substate nationalism.

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State Capacity Redux: Integrating ClassicaL AND Experimental Contributions to an Enduring Debate

Annual Review of Political Science. Presents a framework that integrates classical and experimental approaches to understanding state capacity within a common theoretical structure based on the diverse capacity challenges states face with respect to extraction, coordination, and compliance, while highlighting trends in recent research, as well as relevant differences in opportunities for and obstacles to empirical work on the subject.

Work in Progress

In my job market paper, I argue that the mobilization of substate identities has profound implications for both comprehensive measures of ideology and particular preferences for redistribution. Focusing on Spain, a high-capacity, modern state distinguished by the variety and intensity of the substate identities found within its borders, I find that for strong identifiers with mobilized substate identities, policy scope, the political community in which a policy is intended to apply and be carried out, is nearly as important as policy content, the actual intended effects of a policy. My empirical analysis proceeds in two steps. First, I investigate the structure of policy preferences in Spain by estimating latent differences in multidimensional ideological preferences across regions. Second, I identify the mechanisms connecting substate identity to preferences for policy scope using the results of an original survey I conducted in Spain in June 2017. The results of an experiment embedded in the survey reveal that strong identifiers are more likely to support redistribution when its scope is the community with which they most identify. Moreover, the importance of scope is not merely due to the familiar mechanism of in-group/out-group bias, but also stems from differential trust in political elites, such that shared identity between respondents and elites increases support for redistribution.

Substate Nationalism and the Scope of Redistribution


Which Side Are You On? Partition and Political Violence in Ireland 1920-1921

This working paper analyzes the effect of partition on political violence in Ireland. Analysis of a quasi-natural experiment produced by the circumstances of the 1921 partition of Ireland reveals that although partition did significantly decrease violence against civilians on Northern Ireland's side of the border as compared to the Irish Free State side, violence against civilians in the border areas as a whole increased. Using an original dataset of political violence incidents during the Irish War of Independence, this paper offers the first causally identified ed micro-level examination of the dynamics of political violence and partition in that conflict

Software Development

CJOINT Package

R package allowing researchers to estimate the causal effects of attributes in conjoint survey experiments by implementing the Average Marginal Component specific Effects (AMCE) estimator presented in Hainmueller, J., Hopkins, D., and Yamamoto T. (2014). 


MDIGRT Package

R package developing a multidimensional extension of the dynamic group-level IRT model first elaborated by Caughey and Warshaw (2015). Allows researchers to obtain multidimensional estimates of latent group ideology even given contexts of sparse survey data.