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

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

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

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.

This paper, written by Silvia D'Amato & Andrea Terlizzi, investigates the extent to which the European Union is strategically engaging against terrorism.

Promotores: T.H.W. Bäck, A. Plaat, Co-promotor: F.J. Verbeek

igraph development focused on improving the most-used interfaces, which are Python, R, and Mathematica. Additionally, the developers aim to make the library and the interfaces easier to maintain, focusing on long-term sustainability. This ensures that igraph continues to be a useful tool for network…

Profile Area Political Legitimacy, Leiden University

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

This project aims to improve understanding of, and responses to, the phenomenon of lone actors through analysis of comprehensive data on cases from across Europe.

We live in a data-drenched society awash with numbers. An inhabitant of the democratic polis of Athens (5th and 4th centuries B.C.E.) increasingly found himself surrounded by numerical data. This project aims to analyze the communicative functions and the political meaning(s) ascribed to these public…

How does the cluster bootstrap procedure in combination with various types of linear models perform in the analysis of longitudinal data, compared to other methods.

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 chemical and structural heterogeneity of toxoid vaccines makes their analysis challenging. However, detailed insights on a molecular level can be obtained by mass spectrometry.

In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.

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…

Understanding how data derived from wearable technology can be used to identify effective changes in behaviour that are likely to result in health improvements

We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.

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…

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

Thanks to data science, we can chart and search enormous quantities of related information. This generates all kinds of new insights, for example in complex global financial structures or such societal problems as loneliness.

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…

The objective is to develop in vitro antigen degradation assays in order to mimic the fate of the antigen in vivo.

Political and social implications of life in a digital age.

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.

-

Doctoral Thesis

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…

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.

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.…

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.

The Politics and Governance department of the Institute of Public Administration focuses on the complex interaction between politics and governance. Our research explores contemporary issues such as the impact of global crises, populism, and polarisation at various levels of government.

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 specialisation Global Political Economy of the master’s in International Relations at Leiden University provides you with a cutting-edge understanding of the world economy and its social and political foundations.

Are you thinking about studying European Politics and Society? Learn more and watch the programme presentation.

What makes some international organisations more likely to succumb to crises where others manage to survive or even thrive? And what can international organisations do to become resilient and withstand existential challenges? Political Scientist Gisela Hirschmann (Leiden University) studied the example…

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.

This thesis addresses the challenge of sustainable urban development by analyzing the interplay between green and grey infrastructure to optimize resource use and ecosystem services.

Can we develop a generic method for Quan/Qual analysis of small molecule drugs, their metabolites and endogenous metabolites in (pre-)clinical samples?

Promotors: W. Jiskoot; G.J. Witkamp, Co-promotor: M.R. Nejadnik

Politics and Aesthetics is one of the six research themes of the LUCAS Modern and Contemporary cluster.

This book concentrates on the regulation of political parties in the EU post-communist democracies, and on Bulgaria, Croatia, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia, Slovenia and Romania, in particular.