How many written parliamentary questions does each party put to each minister? Political scientists Simon Otjes (University of Groningen) and Tom Louwerse (Leiden University) studied the practice in Dutch parliament and found that parties use parliamentary questions strategically as part of their ‘permanent…

Political scientists Tom Louwerse, Simon Otjes & Cynthia van Vonno introduce the Dutch Parliamentary Behaviour Dataset, a record of parliamentary (voting) behaviour in the Dutch Tweede Kamer (Second Chamber, House of Representatives) since 1945.

MPs in the Netherlands are first and foremost motivated by their direct environment, i.e. the parliamentary and partisan institutions.

Beyond the immediately visible plenum, parliaments are highly complex institutions. They work through various venues in which decisions are prepared or even taken. The two main institutions in this regard are parliamentary party groups, which comprise legislators who are elected under the same party…

Cynthia van Vonno, political scientist at Leiden University, explains why individual MPs vote according to the party group line.

The parliamentary elections in the Netherlands, scheduled for March 2017, are likely to result in a fragmented parliament and a complicated coalition formation process, according to Dutch political scientist Hans Vollaard (Leiden University).

The leading textbook on governance and politics in the Netherlands. The authors offer a clear and comprehensive account and have revised the text to provide full coverage of recent important developments.

How did parties as political organizations emerge?

Akbik and Diessner expand the classic typology of police-patrol and fire-alarm oversight with two new categories: planning bureaus and ambulance chasers.

Populist opposition parties are less likely to engage in policy-making behaviour (participating in or directly influencing legislative production) and somewhat more likely to engage in scrutiny behaviour (monitoring and criticising government actions).

Political scientist Luzia Helfer (Leiden University) empirically tested claims about media-politics relatiopns using unique data from experimental studies with elected politicians and political journalists in Switzerland and the Netherlands.

How do parliamentarians secure their political future? Are their activities in the legislature connected to their place on the candidate list from one election to the next? Political scientists Tom Louwerse and Cynthia van Vonno examine the Dutch case. Their main finding is that speaking in the plenary…

How to explain variation in the extent to which parliamentary voting behaviour follows the government–opposition divide? Party Politics article by Tom Louwerse et al.

Dutch politics has long been a paragon of stability. Think, for example, of our party system until, say, the last decade. At the same time, we also see occasional changes and significant shifts. Society has changed and this is reflected in, among other things, how we vote and how policy is made. About…

This volume brings together experts on the history of the various revolutionary Sister Republics.

Debates on political legitimacy in Dutch parliament in the 1880s, 1930s, and 1960s

The Dutch Advisory Council on International Affairs (AIV) recently published its report ‘The war in Ukraine: A geopolitical shock to the system’. On 7 July 2022, the Dutch House of Representatives had asked the Advisory Council to provide an expedited report on the consequences of the war for Dutch…

The eleven innovative essays in this volume explore the notion that all forms of modern mass politics, including liberal democracies, need such a form of sacralization of politics to function.

Last Thursday the Dutch House of Representatives held a debate on children being put into care when the childcare benefits scandal (toeslagenaffaire) had caused problems for their families. Four Leiden University academics were asked by the House to produce a fact sheet for this debate, bringing together…

On 22 February 2017 political scientist Tim Mickler (Leiden University) defended his dissertation on the structure, composition, and working of parliamentary committees. He was awarded the exceptional predicate 'cum laude'.

Many of the big challenges of the 21st century (climate change, international migration, financial instability, socio-economic inequality) find their origins in the organisation of the global economy. Any solution to the world’s big challenges therefore requires forceful policy interventions at the…

Jan de Vetten brengt zijn promotieonderzoek ook uit in boekvorm. ‘In de ban van goed en fout’ beschrijft voor het eerst - op basis van archiefonderzoek en interviews - op samenhangende wijze de bestrijding van de CP en CD, en ook de reactie daarop van die partijen. Waarom werden ze zo fel werden bestreden?…

The research group Politics, Culture and National Identities 1789-present investigates a wide range of national political cultures in Europe and the Americas in the 19th and 20th centuries. Instead of only analyzing high politics (the acts of governments and political parties), the research group focuses…

Political scientist Tim Mickler (Leiden University) receives a grant from The Dutch Research Council (NWO) for his quantitative research into post-parliamentary positions of parliamentarians. The grant is a result of the SGW Open Competition XS, with the aim of stimulating innovative scientific rese…

The Leiden Political Economy Group (L-PEG) is a multi-disciplinary network of scholars with a research interest in (comparative / global) political economy based at Leiden University. Our members belong to various institutes and faculties across Leiden University, and from other universities across…

Political scientist Matthew Longo (Leiden University) takes a detailed look at the evolution of border security in the United States after 9/11. Far from the walls and fences that dominate the news, he reveals borders to be thick, multi-faceted and binational institutions that have evolved greatly in…

The Leiden Lectures in Media | Art | Politics (MAP) is a series of talks organized by Pepita Hesselberth and Yasco Horsman. Speakers from various academic backgrounds and in different stages of their careers reflect on diverging ways in which technological and social changes challenge and transform…

Political scientist Maurits de Jongh (Leiden University/Sciences Po) argues that political liberalism is self-defeating as a framework of justification for liberal conceptions of justice. He explores how the framework's self-imposed criterion of acceptability in the eyes of all reasonable citizens leads…

Never has good policy been so important. From unemployment and a lack of affordable housing to regulating cryptocurrencies and protecting against cybersecurity threats, the challenges we face are complex and global. The text explains how policymaking works: from the emergence of policy ideas to deciding…

The Leiden Research Profile Area Political Legitimacy organizes a public symposium on the 12th of May 2016 on the legitimacy and future of the Dutch Senate.

Why obey the state? Dorota Mokrosińska presents a fresh analysis of the most influential theories of political obligation and develops a novel approach to this foundational problem of political philosophy, an intriguing combination of the elements of natural duty and associative theories.

Political scientist Ruud Koole (Institute Political Science, Leiden University) has been appointed to a state commission that will investigate whether the Dutch parliamentary system and the parliamentary democracy need to be reformed.

Tom Louwerse, lecturer and researcher at Leiden University’s Institute of Political Science, has been awarded a NWO Vidi grant. This will enable him to conduct research on how government and opposition parties cooperate in parliament and how this affects voters’ party choices and satisfaction with d…

Politics is about the authorised allocation of values: who gets what, when and how much? This question is relevant at many different levels, in many different places and in very different ways.

At the Institute of Political Science we value our alumni. We can learn from you, and would like to contribute to your further development. And, of course, we want to lend a hand in connecting ‘our’ political scientists all over the world.

The Institute of Political Science is a vibrant department with nearly 70 academic staff in Leiden and nearby The Hague.

Profile Area Political Legitimacy, Leiden University

Understanding the evolving landscape of extremism in the 21st century.

This dissertation offers a reconstruction of the propositional contents of the writings of Karl Popper, Leo Strauss, and Hannah Arendt while bringing these into discussion with their performative meanings, such as polemical forms of reasoning, analogical and metaphorical uses of language, and hidden…

Under what circumstances do paramilitary groups limit their use of political violence? This article examines the use of political violence by the PIRA.

Are you thinking about studying Political Science? Watch the introduction video’s and learn more!

We are very happy to welcome you to spend the fall semester, spring semester or full academic year studying with us at the Institute of Political Science Leiden or campus The Hague. Here you will find practical information as an exchange student.

This study investigates how the tenure of security (proxied by both inter- and intra-party electoral advantage) affects the engagement and political performance of members of parliament.