What are the behavioral, cognitive, and motivational consequences of decision reversibility?

The European Union acts as one of the most powerful economic actors in the global economy, presents itself as the most successful integration project in recent history, and deploys one of the largest diplomatic services in the world. The European Union Studies minor offers a comprehensive and multi-disciplinary…

No nation-state can solve today's global challenges on its own. In the specialisation International and European Governance you will obtain a deep understanding of the interplay between the international, EU, and (sub)national governance systems and how this interplay affects the capacity of public…

PhD defence

PhD defence

This article reviews how external expertise supports intelligence production and crisis decision-making with Germany's response to the Russio-Ukrainian war.

AI MAPS adopts a freedom and social well-being perspective and focuses on three themes to address key security challenges; Social disorder and public nuisances in neighbourhoods, High-impact crime, and Crowds and events.

Artificial intelligence algorithms govern in subtle, yet fundamental ways, the way we live and are transforming our societies. The promise of efficient, low‐cost or ‘neutral’ solutions harnessing the potential of big data has led public bodies to adopt algorithmic systems in the provision of public…

On 23 February 2022, Cale Davis defended the thesis 'Prosecutorial Discretion in International Criminal Justice'. The doctoral research was supervised by Prof. C. Stahn en Dr. J.C. Powderly.

Whilst government’s ability to design ‘context-specific’ regional innovation policy is generally assumed to depend on the region’s decision-making power, the aim of this study is to investigate how regional government matters. In order to open up the black box of policy design, the study develops a…

How do crises produce changes in specific European Union foreign policy areas, and how should we conceptualise these policy changes?

To argue that people can control the relative contributions of goal-driven and stimulus-driven processes to decision-making and action selection.

How can Critical Raw Material policies/strategies be enhanced in the EU context?

A mediation meeting was held today between the University Council and the Executive Board about the appointment procedure for the Vice-Rector of Organisational Development, Erwin Muller. We have managed to resolve the dispute.

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…

Is there a causal mechanism underlying the decision to attack another country when on the brink of war? If so, does this mechanism differ between regime-types? Political scientist Femke Bakker (Leiden University) addresses this question from a political psychological and comparative perspective and…

The combination of academic and professional skills you gain in the MSc PA makes you an excellent candidate for positions in national and international governance and policy making, as well as for managerial positions in the private sector, after graduation.

How and why governments engage with civil society as well as how civil society organizes itself and exerts political influence constitute the key focus of the research programme Public Governance & Civil Society. As such, this research programme offers unique expertise within the field of public administration…

What are the various forms of inter-organizational collaboration in the public safety sector? How are different forms of inter-organizational collaborative arrangements related? What is the relationship between inter-organizational collaboration and innovation in the public safety sector?

In this special edition of Information Polity there is a focus on the transparency challenges of using algorithms in government in decision-making procedures at the macro-, meso-, and micro-levels.

Our researchers form a unique and interdisciplinary team who are active in various fields.

Across many decision-making tasks, people and animals systematically repeat (or alternate) their choices - even when the choices they make are intrinsically uncorrelated. This phenomenon (also known as 'sequential effect' or 'choice hysteresis') has been known for at least a century, and may be a stable…

Why, then, do governments choose to disclose intelligence and what factors shape how they do so?

This dissertation aims to provide a critical view of Vietnamese secondary school stakeholders’ awareness of democratic education regarding the core educational democratic values and democratic acts within either the ‘physical’ or digital learning environment.

Meet the core staff behind Global Transformations and Governance Challenges, which consists of a Professor, a Postdoctoral Researcher, a PhD Candidate, and multiple Programme Officers and Assistants.

SAILS aims to forge links between the different disciplines at the University and to initiate new academic partnerships.

In this paper, Sarah Giest and Bram Klievink highlight the effects of AI implementation on public sector innovation. This is explored by asking how AI-driven technologies in public decision-making in different organizational contexts impacts innovation in the role definition of bureaucrats.

Introducing five papers about of the impact of crises on the governance, decision-making, and institutional design of the Euro Area, political scientists Valerie D'Erman (University of Victoria, Canada), Paul Schure (University of Victoria, Canada) and Amy Verdun (Leiden University) summarise the 'lessons…

On 26 juni 2018, Claire Achmad defended her doctoral thesis 'Children’s Rights in International Commercial Surrogacy: Exploring the Challenges from a Child Rights, Public International Law Perspective'. The doctoral research was supervised by Prof. Dr. Mariëlle Bruning.

We study cell-fate decision-making using embryonic stem cells as a model system. Stem cells integrate a large number of cues to direct their development into a great variety of cell types.

COI@Leiden organises activities and events throughout the year. These include a monthly seminar series on topics relating to conflict resolution and PhD labs to assist COI students in developing their research skills.

Indonesia is experiencing various environmental challenges related to its fast economic growth. Therefore, it is necessary to have measurable and applicable indicators to obtain accurate data and information regarding the costs of adverse environmental impacts arising from economic activities to support…

Citizens, journalists and scholars notice that foreign policy in, and of, the European Union, is ‘de-Europeanising’. Political scientist Daniel Thomas (Leiden University) offers a theoretical exploration of the likely implications. He expects that it will become more difficult for the EU to achieve…

The research group Cyber Security Governance will provide cutting-edge academic research in the domain of cyber, where modern technology interacts with traditional concepts such as governance, sovereignty, law-enforcement, international relations and conflict.

The use of increasingly large and diverse datasets to guide urban climate action has implications for how, and by whom, local governments are held accountable.

The Administration and Central Services department supports the Executive Board and is responsible for policy and decision-making.

Promotores: G. Persoon, R. Schefold

Social, Economic and Organisational Psychology focuses on the application of scientific psychological knowledge of social processes within and between groups of people and individuals, in organisations, but also during economic and consumer decisions.

It is often claimed that social media can contribute to democratic decision-making by bringing politicians and citizens into dialogue with one another. But is this potential always realised, and how? Most researchers look at politicians and their online communication strategies. In this New Media &…

The project “Optimizing the responsible researcher” (see below) has enriched the knowledge base about the shared values of responsible biomedical research and the various ways in which these ideals are (or are not) put into practice.

Indonesia is experiencing various environmental challenges related to its fast economic growth. Therefore, it is necessary to have measurable and applicable indicators to obtain accurate data and information regarding the costs of adverse environmental impacts arising from economic activities to support…

meet our staff

How did rulers in the Netherlands and in adjacent smaller German territories adapt their regimes to ongoing change in legitimacy and decision-making during the transition period 1780-1820?

Would you like to join our research in Psychology Lab on Wheels? We currently have two experiments in the van. We will take the utmost care to protect your data and privacy. Join in our experiments. meld je aan.

The research group Diplomacy and Global Affairs focuses on international diplomacy, international organisation, global, transnational, multi-level and comparative governance. Among key research topics are the European Union and the United Nations, EU current enlargement policy, rule of law in the EU,…

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.

Leiden experts research ways in which European legislation is converted into national legislation. Knowing how this process works can inspire policy-makers trying to achieve their aims while abiding to Europan legislation.

This project looks at the ways in which youth in southern Nigeria navigate their lives in a context of experiencing long-term socioeconomic uncertainty and political insecurity (duress).

In the specialisation Applied Cognitive Psychology, part of the Master in Psychology, you develop all the practical and academic skills necessary to apply psychological knowledge to real-life problems in working environments and organisations.