Nils-Christian Bormann
  • Home
  • Research
  • Data
  • Teaching
  • CREW
  • Blog

Research

Working Papers

Is there a Prime Ministerial Party Advantage in Portfolio Allocation? How the Cases You Choose Affect the Answers You Get

Nils-Christian Bormann, Sona N. Golder & Jinhyuk Jang

Working Paper, 2025

PDF

Conflict Risk between the Russian Federation and any EU State: An Expert Survey

Nils-Christian Bormann

Working Paper, 2025

PDF

Co-ethnics Co-vote in Africa: Studying Electoral Cleavages with a Co-Voting Regression Model

Carl Müller-Crepon & Nils-Christian Bormann

Working Paper, 2024

PDF Appendix

Getting Religion Wrong: A Response to Toft’s ‘Getting Religion Right’

Nils-Christian Bormann, Lars-Erik Cederman & Manuel Vogt

Working Paper, 2024

PDF


Publications
2025

Probing PR

Probing PR: Does Proportional Representation Induce Ethnic Power Sharing and Reduce Conflict?

Nils-Christian Bormann & Simon Hug

Research & Politics, 12(4), 2025, pp. 1–7

PDF DOI Replication Data

Political Violence and Anti-System Voting

Political Violence and Anti-System Voting in Interwar Italy

Edoardo Alberto Viganò, Bruno Della Sala, Stefan Stojkovic & Nils-Christian Bormann

Journal of Peace Research, 62(5), 2025, pp. 1581–1596

PDF DOI Replication Data

Polarization, Fragmentation, and Democratic Deconsolidation

Polarization, Fragmentation, and Democratic Deconsolidation in Interwar Europe

Lea Kaftan & Nils-Christian Bormann

Democratization, Online First, 2025, pp. 1–24

PDF DOI Replication Data

AIEEDA

Introducing the Archive of Interwar Europe Election Data & Assemblies (AIEEDA)

Lea Kaftan, Bruno Della Sala, Olga Jerjomina, Stefan Stojkovic, Edoardo Viganò & Nils-Christian Bormann

Scientific Data, 2025

PDF DOI Dataset

Electoral Systems

Electoral Systems

Matt Golder & Nils-Christian Bormann

The Oxford Handbook of Electoral Integrity, 2025

PDF DOI

2024

DES Interwar

Introducing the Democratic Electoral Systems Data, 1919–1945

Nils-Christian Bormann & Lea Kaftan

Open Research Europe, 2024

PDF DOI Dataset

2022

Democratic Electoral Systems 1946-2020

Democratic Electoral Systems, 1946–2020

Nils-Christian Bormann & Matt Golder

Electoral Studies, 2022

PDF DOI Dataset

LEDA

Linking Ethnic Data from Africa (LEDA)

Carl Müller-Crepon, Yannick I. Pengl & Nils-Christian Bormann

Journal of Peace Research, 59(3), 2022, pp. 425–435

PDF DOI

2021

Globalization, Institutions, and Ethnic Inequality

Globalization, Institutions, and Ethnic Inequality

Nils-Christian Bormann, Yannick I. Pengl, Lars-Erik Cederman & Nils B. Weidmann

International Organization, 2021

PDF DOI Replication Data

Fast Estimator

A Fast Estimator for Binary Choice Models with Spatial, Temporal, and Spatio-Temporal Interdependence

Julian Wucherpfennig, Aya Kachi, Nils-Christian Bormann & Philipp Hunziker

Political Analysis, 29(4), 2021, pp. 570–576

PDF DOI Replication Data

2019

Uncertainty, Cleavages, and Ethnic Coalitions

Uncertainty, Cleavages, and Ethnic Coalitions

Nils-Christian Bormann

Journal of Politics, 81(2), 2019, pp. 471–486

PDF DOI Replication Data

Power Sharing

Power Sharing: Institutions, Behavior, and Peace

Nils-Christian Bormann, Lars-Erik Cederman, Scott Gates, Benjamin A.T. Graham, Simon Hug, Kaare W. Strom & Julian Wucherpfennig

American Journal of Political Science, 63(1), 2019, pp. 84–100

PDF DOI Replication Data

Judicial Decision-Making within Political Parties

Judicial Decision-Making within Political Parties: A Political Approach

Nicole Bolleyer, Felix-Christopher von Nostitz & Nils-Christian Bormann

Party Politics, 25(5), 2019, pp. 724–735

PDF DOI Appendix

2018

Reputation, Concessions, and Territorial Civil War

Reputation, Concessions, and Territorial Civil War

Nils-Christian Bormann & Burcu Savun

Journal of Peace Research, 55(5), 2018, pp. 671–686

PDF DOI Replication Data

2017

Language, Religion, and Ethnic Civil War

Language, Religion, and Ethnic Civil War

Nils-Christian Bormann, Lars-Erik Cederman & Manuel Vogt

Journal of Conflict Resolution, 61(4), 2017, pp. 744–771

PDF DOI Dataset

2016

A Slippery Slope

A Slippery Slope: The Domestic Diffusion of Ethnic Civil War

Nils-Christian Bormann & Jesse Hammond

International Studies Quarterly, 60(4), 2016, pp. 587–598

PDF DOI Replication Data

Contingent Diffusion of Parliamentary Oversight

The Contingent Diffusion of Parliamentary Oversight Institutions in the European Union

Nils-Christian Bormann & Thomas Winzen

European Journal of Political Research, 55(3), 2016, pp. 589–608

PDF DOI Replication Data

2015

Triangulating Horizontal Inequality

Triangulating Horizontal Inequality: Toward Improved Conflict Analysis

Lars-Erik Cederman, Nils B. Weidmann & Nils-Christian Bormann

Journal of Peace Research, 52(6), 2015, pp. 806–821

PDF DOI Dataset

The Ethnic Power Relations Dataset

The Ethnic Power Relations Dataset Family: Integrating Data on Ethnicity, Geography, and Conflict

Manuel Vogt, Nils-Christian Bormann, Seraina Rüegger, Lars-Erik Cederman, Philipp Hunziker & Luc Girardin

Journal of Conflict Resolution, 59(7), 2015, pp. 1327–1342

PDF DOI


Projects

European Research Council

Democracy, Anger & Elite Responses (DANGER)

Funded by the European Research Council, 2021–2026

Project Site

UK Research and Innovation

Do Nightlights Emissions Enlighten?

Funded by UK Research and Innovation, 2016–2017

Project Site

Swiss National Science Foundation

Power-sharing and Democracy: Beneficial and Perverse Effects

Funded by the Swiss National Science Foundation, 2012

© 2026 Nils-Christian Bormann

 

Built with Quarto