Skip to ContentSkip to Navigation
About us Practical matters How to find us dr. S.P. (Simon) Otjes

Research interests

Currently, I work as researcher the Documentation Centre Dutch Political Parties (DNPP) of Groningen University. My research focuses on the patterns that structure conflict and cooperation between political actors: these include ideological lines of conflict which divide political parties, the dimensions that structure public opinion and the patterns in parliamentary voting. At the DNPP, I also examine developments in European and Dutch party politics. My work combines academic publications with participating in the public debate.


Earlier I worked as post-doctoral researcher at the Institute Public Administration of Leiden University, as an electoral researcher for the headquarters of the Dutch Greens and Bureau de Helling, the thinktank of the Dutch Green Party and as a PhD-researcher at the Institute of Political Science of Leiden University. I defended my thesis in 2012. It focused on the effect of the entry of new parties into the political arena on existing parties and the party system. My research concerned the reactions of parties in both the parliamentary and electoral arena. Before starting the PhD-program I studied Political Science and Philosophy of the Social Sciences at Leiden University.


My academic interest spans a broad range of subjects and includes comparative politics, political parties, party systems, party positions, parliamentary behaviour, interest groups, voting behaviour and political science methodology.


Distance, dissatisfaction or a Deficit in attention: why do citizens vote for new parties?

Introducing the party-interest group relationships in contemporary democracies datasets

Party ideologies and European foreign policy. Examining the transnational foreign policy space

The Netherlands: Political Developments and Data in 2022: A New Cabinet Facing New and Old Challenges

Accountability and alternation: How wholesale and partial alternation condition retrospective voting

Environmental Policy Preferences and Economic Interests in the Nature/Agriculture and Climate/Energy Dimension in the Netherlands

Mind the gap: How party–voter incongruence fuels the entry and support of new parties

Policy positions, power and interest group-party lobby routines

Rally 'Round the Prime Minister: a study into the effects of a diplomatic conflict on public opinion under coalition government

The Netherlands: Political Developments and Data in 2021

Read more


Trek nieuwe coalitie in Eerste Kamer naar links

Nexit threat: EU warned Netherlands 'turn' for 'huge leap' like UK and quit bloc

Waarom breekt links niet door?

Overleg Catshuis over toeslagenaffaire

Van 150 naar 259 Kamerleden? 'Vooral goed voor werkdruk bij kleine fracties'

Met hulp van Farid Azarkan op zoek naar vijf Kamerzetels

Boze, witte, oudere mannen

Opkomst verkiezingen: beter wordt het niet

Read more