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…

The Terrorism and Political Violence research group at Leiden University examines the causes of radicalisation, the tactics of extremist groups, and the effectiveness of counter-terrorism policies. We also explore the role of the media and the influence of postcolonial legacies in the Global South,…

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

How and when do interest groups organise themselves as transmission belts and what are the implications for their political relevance among public officials involved decision-making processes?

Where did the new generation of antislavery activists get their inspiration to organize in large-scale pressure groups?

The ECPR summer school on Interest Group Politics is celebrating its 10th anniversary. To celebrate this especial edition, this year’s summer school includes many renowned researchers and professors from around the world. In addition, as a part of the celebration, we are organizing an exceptional one-day…

Terrorist groups adapt to environmental changes to maintain power. This project provides new insights by developing a theory of strategic target selection and using big data analytics and machine learning to test these hypotheses.

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.

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.

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…

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…

The Oxford Handbook of Dutch Politics provides a comprehensive longitudinal overview of the state of the art of academic research on the Dutch political system: its origins and historical development, its key institutions, main fault lines, pivotal processes, and key public policy dynamics. In each…

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…

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

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 and social implications of life in a digital age.

Explore the MSc in International Politics at Leiden University: a one‑year programme focused on international conflict, crisis management, diplomacy and global cooperation.

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…

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.

How did parties as political organizations emerge?

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…

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.

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

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

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members focus on the democratic role of citizens and the representative links between voters and politicians.

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

Profile Area Political Legitimacy, Leiden University

Politics, Culture and National Identities investigates a wide range of national political cultures in Europe and the Americas in the 19th and 20th centuries.

This volume challenges the idea that the development of ‘democracy’ is a story of rise and progress at all. It is rather a story of continuous but never completely satisfying attempts of interpreting the rule of the people.

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.

The central theme of the NWO-project ‘The Promise of Organization’ is the evolution of political organization during the 19th century. We focus on the enthusiasm, arguments and concrete activities of the organizers as well as the criticism offered by opponents of modern political organization.

In this paper, Sibgatullina and Abbas aim to illuminate the complex connections between the European right-wing movements and Islam and discusses how the adoption of Muslim identity may function as a politically strategic opportunity for European conservative forces.

This handbook is aimed at a wide readership interested in developing an understanding of the political, economic, and social complexity of Eastern Europe. It covers Central Europe, the Baltic republics, South Eastern Europe, and the Western Balkans, as well as all the countries of the former Soviet…

The aim of this project is to study what makes an act or form of violence a specifically political reality.

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…

Political science is a broad study with a lot of depth. You study political issues at local, national and international level, from different perspectives. At the start of your studies, you can choose from two directions: Nationale en Internationale Politiek or International Relations and Organisations.…

Choice is at the very heart of politics. War or peace, left or right, liberty or security, sovereignty or integration, consensus or conflict—choices matter. Choice is also key to your education. Choose an intellectually challenging programme in which you develop your knowledge and expertise in the study…

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members study the design and functioning of Dutch political institutions as well as attitudes and behaviour of political elites and citizens.

The specialisation Culture and Politics of the Master’s in International Relations at Leiden University encourages critical perspectives on complexities of culture as an inextricable part of global politics.

The MSc Dutch Politics at Leiden University offers in-depth insight into contemporary political dynamics in the Netherlands, including parties, public policy, governance, and societal challenges.

This article presents two related arguments. First, the limits of doctrinal analysis cut deeper than many EU lawyers realise. Most would probably accept that legal doctrine does not determine every legal dispute, but lawyers studying EU institutional balance often still assume that it can be deduced…

This project examines the meaning of this historical place, and the way it has been used by the political institutions that have had their seat there.

The Center participates in East European Politics, one of the major political science journals focusing on the contemporary post-communist space.

The Centre for Political Philosophy (CPP) at Leiden University is an interdisciplinary platform for political thought. It aims to bring together all those with an active interest in the field from different institutes, branches and fields of study at Leiden University.