On 1 April 2020, Marc Broekema defended his thesis 'Cognitive Bias in the Judgment of Business Valuations and Valuators'. The doctoral research was supervised by Prof. J.I. van der Rest.

On 1 February 2018 Charlotte Vrendenbarg defended her PhD dissertation

On 14 November 2019, Luis Fiallos Pazmino defended his thesis 'Legal Perspectives on the Cross Border Operations of Unmanned Aircraft Systems'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon and Prof. E.C.P.D.C. De Brabandere.

In this article, Samir Negash, PhD candidate at the Institute of Public Administratation, discusses the discrepancy in European countries between the measured impact of immigration on the welfare state and how this impact is perceived by citizens.

How does self-reliance lead to a decrease in collaboration for public goods?

National parochialism is the tendency to cooperate more with ingroup than outgroup members. Angelo Romano, Matthias Sutter, James Liu, Toshio Yamagishi & Daniel Balliet studied national parochialism across different nations and conclude in their publication in Nature Communications that it is a ubiquitous…

In 'Dutch Atlantic Connections, 1680-1800', Gert Oostindie and Jessica V. Roitman, both of the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV) and also affiliated with the History Institute of Leiden University, assemble an internationally acclaimed selection of authors,…

The Regular LL.M. (Public International Law specialization) is taught by lecturers who possess expertise in a wide range of aspects of public international law, including international criminal law, international humanitarian law, international human rights law, the law on peace and security, international…

A Diachronic Perspective on the Aegean

By placing food at the centre of investigation, this Minor explores current-day debates on political, environmental, economic and cultural change at both the local and global levels.

How do we create an environment for scientists to flourish in, while facing the challenges of the 21st century?

This project suggests a reconceptualisation of pre- and non-capitalist imperial monetary policy, arguing that the existing literature about imperial financial flows has unnecessarily privileged ideas of largesse and seemingly chaotic monetary distribution.

My current research focuses on criminality and gender interactions in nineteenth-century Europe. This project uses a comparative methodology to explain gender constructions in a criminal and in a court setting.

Wijayanto defended his thesis on 17 January 2019

Conservation of biodiversity is one of the main challenges today. A higher degree of biodiversity results in ecosystems that can withstand adverse conditions and better provide essential ecosystem services. This is the case for both agricultural and natural systems.

Pre-modern long-distance trade was fraught with risks which often created conflicts of interest. The ensuing disputes and the ways the actors involved dealt with them belong to the field of conflict management.

The RISIS project aims at creating a distributed research infrastructure to support and advance science and innovation studies. This will give the field a strong scientific push forward, and at the same time, provide a radically improved evidence base for research and innovation policies, for research…

Across Europe, the need for a more dynamic governance and a better societal integration of research and innovation is increasingly appreciated. Internal drivers of change (such as the digitalization of science) and political will to better align with societal needs and concerns are bringing about aspirational…

The Effects of the 1881 Liquor Act on the Leiden Alcohol Trade

The energy system is at the heart of two of the greatest challenges of the 21st century: decreasing CO2 emissions to meet the ambitions of the Paris agreement while fulfilling the growing energy demand associated with the economic aspirations of a growing world population.

The programme places emphasis on the interrelation of regional economic law of the European Union with global or trade law of the World Trade Organisation.

The Uses of Justice in Global Perspective, 1600–1900 presents a new perspective on the uses of justice between 1600 and 1900 and confronts prevailing Eurocentric historiography in its examination of how people of this period made use of the law.

This study offers a new view on public services in the early modern Low Countries and answers the following questions: who provided public facilities in urban communities and in which ways did public amenities change in the period between 1500 and 1800?

COUNTERRR examines domestic responses to jihadist armed groups in Africa, analyzing variation in state repression, community resistance, and the evolution of security across Mali, Nigeria, and Mozambique.

Painstaking research in Dutch and Portuguese archive materials, so far poorly assessed on the topic of social relations, reveals intense and intricate associations between different European individuals both in terms of ethnicity and social strata.

In an op-ed for EU Law Live, Joris Larik (Leiden University College The Hague and Europa Institute) stresses that delays to the Mercosur and India agreements risk undermining Europe’s economic competitiveness and global credibility.

At a time of urgent threats to both the planet and multilateralism, Brian McGarry (Assistant Professor of Public International Law at the Grotius Centre for International Legal Studies) has published a new volume on the past and future of international environmental law.

On Friday 7 March 2025 Adam Knight successfully defended a doctoral thesis and graduated.

Exploiting the Ecological Role of Natural Products as Novel Biocontrol Agents (LIPQUORUM): The central aim of LIPQUORUM is to unravel the intricate interkingdom signaling mechanisms between the Bacillus subtilis species complex and the devastating fungal pathogen Sporisorium scitamineum.

Responsible Research and Innovation (RRI) implies that societal actors (researchers, citizens, policy makers, business, third sector organisations, etc.) work together during the whole research and innovation process in order to better align both the process and its outcomes with the values, needs and…

This is the first reference work to describe the history of embroidery throughout Central Asia, the Iranian Plateau and the Indian Subcontinent from the medieval period through to the present. It offers an authoritative guide to all the major embroidery traditions of the region and a detailed examination…

What mismatch of socioeconomic and environmental values is preventing Circular Collaboration in Dutch housing renovations?

The Next444 project focuses on the future of interdisciplinary research at Leiden University.

Carsten Stahn has just published Confronting Colonial Objects: Histories, Legalities and Access to Culture. The book is part of the OUP Cultural Heritage Law and Policy Series.

The Algorithms and Software Technology (AST) research programme performs fundamental research in the areas of algorithm design and analysis.

Tero Alstola defended his thesis on 21 December 2017

This book takes you through the process of writing an empirical thesis, step-by-step, with a (primary) focus on experimental research since that is common in this field. By breaking down the steps of experimental research in chronological order and including tips in each step, the authors hope to give…

The form and content of the course are determined by your answers on the intake form and, if necessary, an intake interview.

This research delves into the unique cultural approach of the Tenggerese people, an Indigenous community in East Java, Indonesia, regarding elderly care. It focuses on their traditional practices of bakti (‘filial piety’) and sayan (‘mutual aid’), deeply ingrained in the community's lifestyle and va…

Volume 20 contains eight articles based on research of the Faculty of Archaeology, Leiden University.

You will develop an understanding of the interconnectedness between the world economy, international law, justice, war and how peace might become more prevalent.

As Bolivia reels from the collapse of the government in November 2019, a wave of social protests, and now the impact of Covid-19, this book asks: where next for Bolivia?

A new paper written by Jolien van Breen, Soledad de Lemus, Russell Spears & Toon Kuppens in the British Journal of Social Pscychology examines the impact of the 2008-2012 financial crisis on national identity in Spain.

This study aims to examine how South Korea (hereafter, Korea) and Japan, two neighboring countries in Northeast Asia, have been responding to and mitigating the spread of COVID-19.