Organizations often announce their protest activities prior to their implementation to mobilize awareness, recruit supporters, and receive media attention. We are interested in the effectiveness of protest announcements—that is, under what conditions governments make concessions to avoid having an announced…

How does the criminal justice system in Indonesia safeguard the rights of and access to justice for witnesses and victims?

Squatters and autonomous movements have been in the forefront of radical politics in Europe for nearly a half-century—from struggles against urban renewal and gentrification, to large-scale peace and environmental campaigns, to spearheading the antiausterity protests sweeping the continent.

Deepfakes are videos that have been manipulated to replace one person’s likeness with that of another. They can be difficult to distinguish from authentic videos. In our study, we found that people who score high on conspiracy thinking and people who use social media more are better at distinguishing…

Eschatology played a central role in both politics and society throughout the early modern period. It inspired people to strive for social and political change, including sometimes by violent means, and prompted in return strong reactions against their religious activism.

Political scientist Rebekah Tromble (Leiden University) and computational sociolinguist Dirk Hovy (University of Copenhagen) analyse how much hostility and sexism Clinton faces on Twitter, as well as who seems to be behind such attacks.

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 aim of this thesis was to study the link between hearing loss, language skills, and social functioning in deaf and hard of hearing (DHH) children. Sufficient language skills are an essential prerequisite to develop appropriate communication skills, in order to join in conversations with others.…

International Relations and European Politics is one of the three organisational clusters of the Institute of Political Science.

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…

Southern Crossings: Indian activists and the Afro-Asian movement in the early Cold War era

Dario Fazzi

Dutch right-wing political party Forum for Democracy has repeatedly demonstrated that it has no lower limit when it comes to morals. Should the courts in the Netherlands protect democracy by banning parties like Forum? Several legal experts from Leiden University commented on this question in newspaper…

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…

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…

Providing a valuable overview of regionalism throughout the entire continent, Regionalism in Modern Europe combines both geographical and thematic approaches to examine the origins and development of regional movements and identities in Europe from 1890 to the present.

How do processes of coalition-formation influence patterns of decision-making in the European Union?

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.

This new article by Bassant Hassib and James Shires is part of a special issue for Journal of Cybersecurity, based on a selection of contributions from THe Hague Program for Cyber Norms' 2019 Conference.

Chinese organisations increasingly operate across the borders of China, and growing numbers of people from outside China are coming to live there. Professor Frank Pieke believes these movements have a significant effect on central and local government policy in China.

This article introduces the concept of Repertoires of Comparison (RoCs) to explain how certain comparisons become deeply embedded in social and political life.

This book uses a biographical approach to explore the Labour Party's relationship with European integration, moving beyond simple 'pro' or 'anti' labels to showcase the complexity of views that have existed.

Political scientist Simon Otjes (Leiden University) receives a grant from The Dutch Research Council (NWO). The grant is part of the SGW Open Competition XS, which aims to stimulate innovative scientific research within the Social Sciences and Humanities domain. Otjes receives the grant for his research…

This study focuses on increasing our understanding of the different pathways converts take during conversion to Islam.

Political Islam is not new to the Middle East, but the appearance of ISIS has stretched the phenomenon to the extreme.

The consequences of social tendencies for the legislation and institutions in the fields of social security, the labor market policy and pension reform are examined in this multdisciplinary research program..

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…

This COIn Grant 2025 awarded project allows Leiden University researchers and students to do research on the world’s largest corpus of digitized Ottoman language periodicals and books.

Helping people, groups and policymakers navigate the social transitions of our time.

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

Do you have to be able to say everything on Twitter and Facebook? Is Instagram morally obliged to remove photos from attacks? Should we allow the terrorist group to recruit new members on the internet?

From 23-25 April 2014, a conference will be held on the topic of Buddhism and Social Justice. This conference confronts the common perception of Buddhism as intrinsically a tradition of peace and justice, and explores the various ways in which historically Buddhist societies of Asia have shaped, transmitted,…

In the present-day United States, to what degree(s) are far-right men and women similar and/or dissimilar in their motivating factors for engaging in far-right social movement activism?

In what ways do historical and current events affect how we should judge the legitimacy of political authorities?

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

What is the relation between the experience and the act of exclusion?

Profile Area Political Legitimacy, Leiden University

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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.

Hegemony and World Order explores a key question for our tumultuous times of multiple global crises.

Political scientists Tom van der Meer, Lisa Janssen (University of Amsterdam) and Tom Louwerse (Leiden University) analyse polls presented by the main polling agencies in the Netherlands, as well as micro-level panel data. They reach three main conclusions. First, vote intention polls in the Netherlands…

Looking back on 2024, Elon Musk and his impact on the global stage, political developments in the Netherlands and the war in Ukraine come to mind. These and other topics were discussed in ‘De Jortcast’, a podcast hosted by Jort Kelder on Dutch radio offering ‘radio therapy against hypes and hysteria’.…

On 27 September 2017 a new book by Prof. Luuk van Middelaar appeared, entitled The new politics of Europe. The book is at the same time a front line account of Europe’s recent crisis years – from monetary turmoil to tensions around Ukraine, from refugee crisis to Brexit – and an analysis of the Union’s…