Research in Leiden University’s Institute of Political Science focuses on the dynamics and the interaction of political institutions, individual decision-making, and collective behaviour.

How can teachers be motivated by their students’ data in making stepwise changes to their teaching practices?

This article explores the concept of issue prioritisation within the context of public administration research, focusing on decision-making processes.

Leiden University Centre for the Arts in Society (LUCAS) invites applications for a PhD position within the project ‘Libraries as Links in Learning: Making the Meaning of Manuscripts’ (1.0 fte, 4 years). The PhD candidate will track changing professional and scholarly practices and attitudes towards…

The focus of the Multicriteria Optimization and Decision Analysis (MODA) group is to develop foundations of methods in multi-objective optimization.

How do individuals make decisions? What determines the quality of group decisions? When and why do people cooperate with others? How does intergroup competition evolve?

Recently, Evert Jan van Leeuwen was able to identify an “unknown” manuscript leaf in the William Godwin Papers of the Abinger Collection at the Bodleian Library (Oxford), while sitting at his desk in Van Eyckhof 4 (Leiden).

Efficiently responding to others’ emotions has great survival value, especially for social species, such as primates, who establish close, long-term bonds with group members. The closest living relatives to humans are the chimpanzee and the bonobo. Studying these species, and comparing them on the exact…

From Soledad Acosta de Samper and Albalucía Angel to Hazel Robinson Abrahams and Amalialú Posso Figueroa. During the Symposium & Workshop Experience and Voice: Library of Colombian Women Writers, Carolina Olarte-Bácares, Ambassador of Colombia, donates the Biblioteca de Escritoras Colombianas to the…

What can a doodle tell us about the person who drew it? Erik Kwakkel is a Dutch book historian at Leiden University who searches for the secret meanings of doodles and scribbles in medieval manuscripts. He talks to BBC World Service about his passion for books.

In November 2019, Morshed Mannan participated at a conference entitled Who Owns the World? The State of Platform Cooperativism, that was hosted by The New School in New York City.

Simona Demková, Assistant professor at the Europa Institute of Leiden University, publishes her book ‘Automated Decision-Making and Effective Remedies: The New Dynamics in the Protection of EU Fundamental Rights in the Area of Freedom, Security and Justice’.

This minor focuses on how our thoughts, emotions and behaviour are influenced by other people, and how we influence other people.

In their vision trajectory, the Office for the Senior Civil Service (in Dutch: Bureau Algemene Bestuursdienst) communicated its plan to renew its vision on public leadership. Over the course of 2021, the Leiden Leadership Centre contributed as a scientific partner to the substantiation of this visio…

Leiden University is famous for its library’s large collection of Oriental manuscripts. Part of this collection is a group of 104 Arabic documents written on papyrus and paper (Or. 8264 and 12885). These documents date from the 7th through 10th century CE and cover a wide range of subjects (private…

Cat Paw Tweet Goes Viral

New data streams needed to innovate global governance.

Erik Kwakkel, researcher at the Faculty of Humanities, has found an extraordinary manuscript in the University Library’s extensive collection of medieval books. The book in question dates back to the first half of the eleventh century and is made entirely out of waste left over from the production of…

This article provides an all-inclusive overview of public diplomacy literature that relates to a myriad of issues and has been studied from various points of view.

What are the essential determinants of (dis)trust? And, what are the effects of being (dis)trusted?

Our project focuses on the analysis of decision-making processes in the European Union (EU) and explores how approaches and tools to understand decision-making found in both the Natural and the Social Sciences can be linked, knowledge between these traditions exchanged and synergies utilized. To explore…

PACES is an innovative, inter-disciplinary and multi-level research project that asks, How do changes in society, individual life experiences and migration policy shape decisions to stay or to migrate over time and across countries? And how can this knowledge inform future migration policies and gov…

What political factors affect the speed or duration of EU legislative decision-making?

Mariken Teeuwen started at the Institute for History as a professor by special appointment of Script Culture of the Middle Ages on 1 March. ‘I’m looking forward to doing research together with students.’

Several of the most important manuscript collections in the Leiden University Libraries (UBL) Special Collections, comprising 443 extremely rare and often unique volumes, have been made available in Open Access via Digital Collections. The available manuscript collections include the private collections…

Overview of Leiden publications on Central Asia. For additional publications dedicated to a single country, please go to individual pages of the researchers, which you can access through the Researchers page.

‘Heritage Under Threat’ and ‘The Rooseveltian Century’ are among the 21 best MOOCs for a general public according to New York Magazine.

An evening program in the University Library and Middle Eastern Library in Leiden for everyone who has something to do with the Middle East; from Tajikistan to the Mahreb and from Istanbul to Sanaa. View the oldest books and clay tablets from the collection and listen to the most fascinating stories…

Persian stories with beautiful miniatures, letters on papyrus from Egyptian traders and medicinal manuscripts translated from Greek and edited in Arabic. Studium Generale organizes a lecture series on the world-famous manuscripts from the Middle East collection of Leiden University Libraries (UBL).…

We would all like to live in a world in which individuals feel safe, conflicts are resolved peacefully and the interests of future generations are taken into consideration. At Leiden University legal scholars investigate to what extent public international law meets the needs of a globalised society.…

This thesis examines the complexity of legislative decisions within the EU, with a specific focus on the Council of the EU.

We present an extensive study of methods for exactly solving stochastic constraint (optimisation) problems (SCPs) in network analysis. These problems are prevalent in science, governance and industry.

From study places to consulting collections and from a meeting with your faculty liaison to getting books after opening hours: the new Science Library offers it all. The library moved to a brand new location in the Gorlaeus building and will be open starting 15 April.

Every day, we make numerous decisions, from choosing what to eat to how we interpret the world around us. Traditionally, researchers have assumed that a key part of our decision-making process, namely the decision criterion, stays stable over time. However, increasing evidence suggests that instead…

Joris Larik, Assistant Professor of Comparative, EU and International Law at LUC The Hague and Convener of the International Justice major, presented his research at the Midyear Meeting of the American Society of International Law, which was hosted by Brooklyn Law School in New York City.

Implementing all kinds of change and introducing new structures, far-reaching rules and administrative systems may sometimes seem to distract an organisation from its purpose. Furthermore, there is growing recognition of the need of staff of public organisations to find more meaning in their work: the…

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The starting point for this research project is the notion that the human brain is susceptible to all kinds of fallacies and biases that affect our perceptions and influence our reasoning outside of our conscious awareness. Indeed, most people think they are merely observing facts and that they process…

The company Azafaros was established in 2018 to translate innovative science from Leiden University and Amsterdam University Medical Center into novel disease-modifying treatment modalities for rare genetic metabolic disorders such as lysosomal storage diseases.

Due to the unrest in the Middle East, many ancient Syrian manuscripts are no longer available or have even been destroyed. Professor of Old Testament Bas ter Haar Romeny received 77 microfilms of Syrian manuscripts, enabling him and his PhD students to research these ‘lost’ manuscripts.

Studies of perceptual decision-making typically present the same stimulus repeatedly over the course of an experimental session but ignore the order of these observations, assuming unrealistic stability of decision strategies over trials. However, even ‘stable,’ ‘steady-state,’ or ‘expert’ decision-making…

Here you'll find selected publications and media attention from our group.

This week sees the first edition of the textbook Mouse&Manuscript published online. Mouse&Manuscript is a collection of interactive lessons on codicology and oriental manuscripts. Its aim is to stimulate teaching on codicology in and outside of the classroom, and to contribute to the disclosure of Leiden…