This volume provides one of the most comprehensive overviews of the archaeology of a single Caribbean island yet published. Drawing together scholars from the Caribbean, north America and Europe, all working from a range of disciplines within the broader scope of archaeology, and drawing upon recent…

Citizen science is an umbrella term. It describes a range of ways to involve citizens and societal actors such as NGOs in collaborative knowledge production: crowdsourcing research questions, collective data gathering and analysis (to name a few examples).

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

How did institutions and structures operate throughout the Muslim world from the earliest history of Islam into the early modern period?

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…

On 2 Juni 2021, Maarten Manse defended his thesis 'Promise, Pretence and Pragmatism: Governance and Taxation in Colonial Indonesia, 1870-1940'. The doctoral research was supervised by Prof. R. Arendsen.

The figure of the barbarian has captivated the Western imagination from Greek antiquity to the present. Since the 1990s, the rhetoric of civilization versus barbarism has taken center stage in Western political rhetoric and the media. But how can the longevity and popularity of this opposition be accounted…

Promotores: Prof.dr. C.A.M.J.J. van den Hondel, Prof.dr. V. Meyer (Technische Universität Berlin)

All research at Leiden University is organised into institutes. To do justice to the wide spectrum of research (and consequently teaching) that comes from these, you will find descriptions of all the Leiden institutes on these pages.

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The IEG specialisation prepares you with knowledge and understanding of the key concepts and theories of management, decision-making processes and implementation in EU and international institutions.

This specialisation focuses on the interplay of international rules and institutions, non-governmental organisations, and national governments in an era of emerging powers, technological change and pressing issues of security, prosperity and sustainability.

Never has good policy been so important. From unemployment and a lack of affordable housing to regulating cryptocurrencies and protecting against cybersecurity threats, the challenges we face are complex and global. The text explains how policymaking works: from the emergence of policy ideas to deciding…

Climate adaptation strategies frequently include the sourcing of heritage, encompassing landscapes, built environments and cultural practices. However, effective climate change governance requires taking seriously the stakes of local communities and the power relations that structure heritage initia…

Our current lifestyle is not sustainable, and we know it. Our carbon-based economy causes climate change, and our livestock threatens the rainforests. We also know what we ought to do to save the planet: decarbonize the economy and change our diet. However, too many people lack the moral motivation…

Research at Leiden Law School means research at the highest level. Leiden Law School has eight broad research programmes and one specific ‘profile area’: Interaction between legal systems - which aims to understand the complex interaction between the various levels of jurisdiction and to solve the resulting…

Study information

The Leiden Leadership Centre is an interdisciplinary network organisation branching out from its place within the Institute of Public Administration, Faculty of Governance and Global Affairs (Leiden University in The Hague). The LLC functions as a platform by connecting students, practitioners, and…

The primary aim of this project is to recover, order, and assess Persian Epic Cycle material in order to provide the field of Iranian studies with the first comprehensive and balanced analysis of the form and contents of the epics within the Persian Epic Cycle.

Promotor: E.F. Smets, Co-promotor: J. Geml

In this PhD study, I aim to deepen our understanding of the influence of major mycorrhizal types, namely arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), on the global soil carbon cycle and their potential distribution changes under future environmental shifts.

Edwin Bakker, invited speaker, at The EU conference on the future of higher education on March 9, 2016, advocated in his presentation ‘MOOCs as drivers of change: The teacher’s perspective’ for an open and positive attitude to digital learning environments and to leverage the potential of technolog…

From April 6th to 8th the Tyndall Centre for Climate Change Research hosted the conference ‘Climate Dilemmas – Ideals versus Realities’ at the University of East Anglia (Norwich, UK).

New research report and policy brief by Carolien Jacobs (VVI) and Bernardo Almeida (VVI)

Mining the unusually rich diaries, memoirs, and poems written by Netherlandish Catholics, Judith Pollmann explores how Catholic believers experienced religious and political turmoil in the generations between Erasmus and Rubens.

We are all aware of the importance of a healthy lifestyle. However, at the same time we also experience many difficulties when we are trying to change our behavior to become more healthy. For example, more often than not our good intentions to exercise more or to eat fewer unhealthy snacks fail miserably…

For students who want to be an intermediary between scientific experts, policy makers and politicians in the domain of sustainability, the master programme Governance of Sustainabiliy might be just what they are looking for. Leiden University intends to start this new The Hague based programme in September…

PhD defence

Human activity, such as pollution, may disturb the balance of living water systems, which has consequences for biodiversity, but also for other functions such as water purification. Leiden University maps living water systems using the most advanced technologies.

Positive friendships are characterised by understanding mutual wishes and intentions, respect for each other’s boundaries and pro-social behaviour. Qualities that might be more challenging for autistic adolescents.

Indigenous Peoples possess unique perspectives of the world that will be lost if their knowledge and heritage are not documented, studied and protected. If we lose this knowledge, we are losing part of our own heritage.

Globalisation leads to more contradictions between national and international tax norms. It therefore seems necessary to revise the fiscal legislation. This is not only due to the problem posed by multinationals, but also to changing norms regarding tax burden distribution. Fundamental research on the…

SEAtrans: an interdisciplinary research project that aims at studying the dynamics and processes of transitions in society-nature interactions in Southeast Asian societies.

In this article, Joris Larik and Richard Ponzio grasp the importance of the Summit of the Future to overhaul and strengthen multilateral cooperation in an age of deepening rifts and increasing competition between the great powers. This article argues that a failure to convene a meaningful and ambitious…

Promotores: J. Jonkers, K.E. de Visser

Challenges for the protection of traditional knowledge and genetic resources, traditional cultural expressions, and traditional knowledge of indigenous peoples in the international scenario.

The Hague Journal of Diplomacy (HJD) is the world’s leading research journal for the study of diplomacy and was founded in 2005. The journal is published by Brill.

Microbial rhodopsins are photosensitive pigments implemented in the growth and adaptation of a large population of microorganisms.

Circulating in Brazil's social media today are many vicious attacks against presidential candidate Luiz Inácio Lula da Silva, known simply as Lula. Widely and enthusiastically shared memes humiliate Lula by depicting him as a poor, uneducated drunkard who deserves to be in jail, thus criminalizing his…

The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).

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.

In this article Vanessa Newby discusses how the ANZUS states of United States, Australia, and New Zealand that sit on the fringes of the Asia-Pacific, are increasingly using their armed forces to deliver Humanitarian Aid and Disaster Response (HADR) as a way of engaging with the region.

This edited volume offers a critical discussion of the trade-offs between transparency and secrecy in the actual political practice of democratic states in Europe. As such, it answers to a growing need to systematically analyse the problem of secrecy in governance in this political and geographical…

On 19 February 2020, Richard Jiang defended his thesis '‘Greening’ the WTO Ban on China’s Export Duties'. The doctoral research was supervised by Prof. M.C.E.J. Bronckers.

The HJD Article Award is given to the published research article which best advances the theoretical and/or empirical study of diplomacy.

In this PhD-thesis several new and existing data science application are described that are particularly focused on applications for tax administrations.

On 17 October 2018, Thomas Sanders defended his doctoral thesis 'Invordering door de overheid: de invordering van geldschulden uit herstelsancties onder de Awb'. The doctoral research was supervised by Prof. mr. T. Barkhuysen and Prof. mr. M.W. Scheltema.

Several times per year, the Europa Institute organizes a ‘Meet the Author’ event. In the context of this event series external academics come to Leiden to discuss a recent publication by their hand. The event typically starts with a conversation between a member of the Europa Institute and the author,…

In order to realise high quality valorisation of scientific research, eLaw practices valorisation activities during all stages of its research, i.e., not only after finishing research, but also prior to and during research.

This article examines to what extent bureaucratic responsiveness depends upon the source, the content and the salience.