Research
Publications
- Osamura, K, 2026. Bureaucratic appointments and coalition support in presidential systems: An analysis of Brazil’s Chamber of Deputies. Party Politics (OnlineFirst).
Ongoing
Work in progress
Working papers
- Electoral Prospects of Party Defectors: Roll-Call Voting and Electoral Performance in South America. (Under review, draft available on request)
- Single author.
- Single author.
- Ideological Cohesion and Legislative Efficiency in Presidential Systems. (Draft available on request)
- Single author.
- Presented at: Japanese Society for Quantitative Political Science 2025 Winter Meeting; 2024 ECPR Summer School on Parliaments; ECPR 2024 General Conference.
- Single author.
Articles
- Explaining changes in the distribution of policy competencies in multiparty governments.
- With Ulrich Sieberer, Thomas M. Meyer, David Schmuck, Hanna Bãck, Andrea Ceron, Albert Falcó-Gimeno, Benjamin Guinaudeau, Isabelle Guinaudeau, Martin Ejnar Hansen, Kristoffer Kolltveit, Tom Louwerse, Wolfgang C. Müller, and Thomas Persson
- With Ulrich Sieberer, Thomas M. Meyer, David Schmuck, Hanna Bãck, Andrea Ceron, Albert Falcó-Gimeno, Benjamin Guinaudeau, Isabelle Guinaudeau, Martin Ejnar Hansen, Kristoffer Kolltveit, Tom Louwerse, Wolfgang C. Müller, and Thomas Persson
- Tailoring ministerial office to office holders – The impact of gender on portfolio reforms in Western Europe. (Title changed for anonimity)
- First author. With Thomas M. Meyer, Ulrich Sieberer, and David Schmuck
- Presented at the EPSS 2026 Annual Conference.
- First author. With Thomas M. Meyer, Ulrich Sieberer, and David Schmuck
- The Politics of Portfolio Design in European Democracies - Research Note on Dataset. (Title changed for anonimity)
- With David Schmuck, Ulrich Sieberer, and Thomas M. Meyer.
- With David Schmuck, Ulrich Sieberer, and Thomas M. Meyer.
Book chapter
- Introduction: Why and How to Study Portfolio Design. In: The Politics of Portfolio Design in European Democracies. (Title changed for anonimity)
- With Thomas M. Meyer, Ulrich Sieberer, and David Schmuck
- With Thomas M. Meyer, Ulrich Sieberer, and David Schmuck
Dissertation
- Seeking Office, Policy, or Votes? An Analysis of Legislative Coalitions, motivations, and Behavior in Multiparty Presidential Systems
- Supervised by Prof. Thomas M. Meyer, PhD, and Prof. Dr. Laurenz Ennser-Jedenastik.
Projects beyond dissertation
- The Politics of Portfolio Design in European Democracies
- PI: Thomas Meyer, PhD (University of Vienna) and Dr. Ulrich Sieberer (University of Bamberg).
- Funding: Austrian Science Fund (grant number: I 5876-G) and German Research Foundation (grant number: SI 1470/9-1)
- Collaborators: David Schmuck, Hanna Bäck, Andrea Ceron, Albert Falcó-Gimeno, Benjamin Giunaudeau, Isabelle Guinaudeau, Martin Ejnar Hansen, Kristoffer Kolltveit, Tom Louwerse, Wolfgang C. Müller, and Thomas Persson.
- https://governmentportfolios.eu/
Conferences, workshops and training
Conferences
- EPSS 2026 Annual Conference (presenter)
Belfast, United Kingdom
2026
- Japanese Society for Quantitative Political Science 2025 Winter Meeting (presenter)
Tokyo, Japan
2025
- ECPR 2024 General Conference (presenter, 2 papers)
Dublin, Ireland
2024
- ECPR 8th Conference of the Standing Group on Parliaments (presenter)
Vienna, Austria
2023
Workshops
- Studying Political Actors and Institutions in Brazil: Methodological Approaches and Research Designs
Online
2024
- University of Vienna Doctoral School of Social Sciences
- Unleashing the Potential of Geography in Social Sciences: An Introduction to GIS with R
Vienna, Austria
2023
Summer schools
- Summer School of the ECPR Standing Group on Parliaments (participant, presenter)
Frankfurt, Germany
2024
- Essex Summer School in Social Science Data Analysis
- Introduction to Web Scraping and Data Management for Social Scientists
Colchester, United Kingdom
2023
