Philosophy, Politics and Economics (PPE) in Leiden is a unique interdisciplinary master’s programme, considering topics of freedom, justice and citizenship in the 21st century. Watch this video to learn more about the programme!

Philosophy has an important contribution to make to society, says Professor of Practical Philosophy Glen Newey. You need people who can think clearly, certainly in positions of power and authority. Newey stresses that “there will always be a place for philosophy”. An introduction to the practically…

Over the course of the 20th century, politicians increasingly came to rely on experts. Their language was peppered with terms like ‘policy pathways’ and ‘evaluation frameworks’. This made debates more abstract and less ideological.

The aim of this research is to understand the linking of crises for the combination of climate change and the COVID-19 pandemic.

Masses of hamburgers, steaks, cheese and a lot of eggs: Americans love their animal products. But researcher Oliver Taherzadeh discovered that only a relatively small group of high-volume consumers need to modify their diet to achieve an enormous environmental gain.

Ben Van Rompuy, assistant professor of EU competition law, was an invited expert at the 23th Latin American and Caribbean Competition Forum (LACCF) organised in Quito, Ecuador on 28-29 September 2023.

Leiden political scientists Yvonne Kleistra and Niels van Willigen have advised the United States State Department as to how to evaluate its foreign policy. Point of departure was a scientific model that Kleistra and Van Willigen have developed on the basis of their work for the Dutch Foreign Affairs…

Chaider Bamualim defended his thesis on 9 September 2015

Political scientist Tom Louwerse (Leiden University) and a team of international researchers have been awarded a NWO ORA grant. They are going to investigate political representation in an era in which voter alignment with political parties is steadily decreasing.

Our constitutional democracy is under pressure. Politicians are increasingly bending rules and institutions to their will, often in small steps. PhD candidate Jorieke Manenschijn warns that through a combination of subtle changes we can cross a line without realising it.

The historiography of the Bretton Woods conference of July 1944 is dominated by the personal clash between the principal negotiators, Harry Dexter White of the United States and John Maynard Keynes of Britain.

Who tried to influence the mission and position of the Dutch security services between 1912 and 1992, what effect did that have on the form and contents of the security services? How to account for transformations of the security services?

Mr. Ade Jaya Suryani defended his thesis on 28 January 2021

In the 60s and 70s, Black Power groups were also active in the Kingdom of the Netherlands. This is what PhD candidate Debby Esmeé de Vlugt has discovered.

In ‘Dimensions of Free Speech’, Devrim Kabasakal Badamchi (Leiden University Institute of Political Science) offers a new theoretical framework for free speech by critically analysing the major justifications for free speech. Kabasakal Badamchi argues for a justification: namely the double-grounded…

The Dutch scientist prof. dr. Ewine F. van Dishoeck, Leiden Observatory, Leiden University and Max Planck Institute for Extraterrestrial Physics, will receive the 2018 James Craig Watson Medal from the american National Academy of Sciences (NAS).

This volume offers an innovative analysis of Roman political culture in Italy from the first to the sixth century AD on the basis of seven case studies.

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

Lecture, Actualiteitencollege Den Haag

No evidence found that increasing migration leads to an increase in politically and ideologically motivated criminality. Migration flows have, however resulted in increased polarisation in the Netherlands.

Wouter Veenendaal, a political scientist at Leiden University, is an analyst for the Freedom House report. Freedom House is an American non-profit organisation dedicated to democracy, political freedom and human rights. In short, the report describes the degree of freedom and the state of democracy…

The center studies the many ways in which issues of law and justice are dealt with in art and literature with a focus on liminal issues and cases. These are issues and cases where law comes to the limits of what it is capable of dealing with and art and literature explore the implications of what is…

In the context of the summer school "Medieval Religon" prof. Christopher M. Bellitto (Kean University) will give a keynote lecture on June 26th: "Politics and Religion in the Middle Ages and Today: Thoughts of an American Medievalist". This lecture is also open to those interested who do not participate…

Two researchers from the Institute of Political Science were recently awarded prizes. Claire Vergerio received the Francesco Guicciardini Prize for her book on the historical origins of the primacy of the state in international law ('best book in the historical international relations category'). In…

The starting hypothesis of the project is that secrecy is not always inimical to democratic governance as conventional wisdom has it.

Assistant Professor Juan Masullo of the Institute of Political Science has been awarded the 2025 Alexander George Best Article Award for his work on interviews and process tracing.

The prestigious American Journal of Comparative Law (2016, pp. 790-4) just published a book review of Sofia Ranchordas monograph ‘Constitutional Sunsets and Experimental Legislation’ (Edward Elgar). The book is partially based on her PhD dissertation for which she was awarded a cum laude doctorate degree…

The traditional Res Publica study trip took place this year from 20 to 24 April. Because of the coronavirus restrictions, the members of Res Publica – the faculty’s study association for constitutional and administrative law – travelled ‘virtually’ to Portugal, the United States and Singapore. Of course,…

The ASA Board of Directors notes that, serving for almost a decade, the editors transformed History in Africa “into a peer-reviewed journal that not only engages a broad range of historical issues but commands respect throughout the field.” The award will be presented during the African Studies Association…

Political scientist Corinna Jentzsch (Leiden University) explains why Mozambique is not (yet) a success story.

Why did India develop a strong military partnership with the state of Irael, after having ignored it for 42 years? How could both countries develop defense ties in spite of limited political leadership involvement? Finally, what are the prospects for defense relations as India grows to become one of…