People are less willing to give up an interest when in a negotiation situation than when they can do it of their own free will, as Leiden University psychologist Eric van Dijk discovered. Knowledge of this kind can be used by policy makers, for instance, to motivate people to adopt certain desirable…

Industrialised countries extract natural resources in the territories of indigenous peoples, and appropriate the knowledge and culture of these peoples. Leiden anthropologists work to protect the rights of indigenous peoples. Their knowledge and advice enable governments to source sustainable produc…

How interest groups, differences in policy issues and institutional differences between countries affect whether public opinion is translated into policy?

The Dutch legal system perhaps appears at first sight not to be very suited for strategic litigation by interest groups. But judgments such as SyRI and Urgenda show that when an interest group does fulfil all the conditions, anything can happen in court.

The ECPR summer school on Interest Group Politics is celebrating its 10th anniversary. To celebrate this especial edition, this year’s summer school includes many renowned researchers and professors from around the world. In addition, as a part of the celebration, we are organizing an exceptional one-day…

In April 2018, Melanie Fink was elected as a member of the Coordinating Committee of the ESIL Interest Group ‘The EU as a Global Actor’. For the next four years, she will work in that function alongside Christine Kaddous (University of Geneva), Anne Thies (University of Reading), and Ramses Wessel (University…

On Wednesday 6 September 2017 the Interest Group on Migration and Refugee Law of the European Society of International Law (ESIL/SEDI) hosted a workshop in Naples, Italy, in cooperation with the ILS 2.0 Project.

The Convenors of the Standing Group on Interest Groups and the ECPR 2018 Section Chairs, have announced the winners of the best paper awards.

Leiden psychologist Carsten de Dreu was presented with the Spinoza Prize by Education Minister Van Engelshoven on 12 September. The award of 2.5 million euros will allow him to continue with his pioneering research on group dynamics.

Leiden social and organisational psychologist Carsten de Dreu has been awarded a Spinoza Prize, the top science prize in the Netherlands. We talked to him about his passion for group processes, Leiden University and his dreams for the future. ‘A Spinoza opens up a world of possibilities.'

10th ECPR Summer School on Interest Group Politics

Lobby & Advocacy Inspiration Afternoon

Promotor: P. Stevenhagen, Co-promotores: B. de Smit, F. Andreatta

Discussion Group

How did free agents cooperate with the VOC and the WIC, through lobbying for private interests within the Companies as well as at the highest political levels?

If a society is to be secure, sustainable and resilient, conflicting interests must be reconciled. Researchers at Leiden University study the behaviour of individuals, groups and states in relation to this issue, and use their knowledge to promote equality within and between communities.

We are interested in understanding the mechanics of soft materials, of which biological materials are prominent examples.

Since mid-March, residents of Groningen have had access to a single digital portal for reporting damage to property arising from local gas extraction. Why is the Groningen gas issue such a complex problem and why is compensation taking so long? Psychologist Emma ter Mors and public administration specialist…

Promotor: Prof.dr. H.W. Lenstra

Where did the new generation of antislavery activists get their inspiration to organize in large-scale pressure groups?

What legislative and regulatory questions arise when children, adolescents or elderly people use the Internet?

Promotores: H.W. Lenstra, A. Lucchini

The purpose of eLaw's Working Groups is to stimulate a productive working environment for cooperation within the Center for Law and Digital Technologies at Leiden University.

The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.

How are interests embedded and experienced in daily life and to what extent can their origin and development be understood in terms of this contextualization?

Promotor: Prof.dr. P. Stevenhagen & Prof.dr. K. Belabas (Univ. de Bordeaux)

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Researchers at Leiden study group behaviour. One of their findings is that when people make sacrifices for another member of their group, it is probably instinctive. Insights of this kind enable us to better understand and influence the social processes in a neighbourhood or company.

Promotor: S.M. Verduyn Lunel, Co-promotores: M.F.E. de Jeu, B. de Pagter

The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

This edited volume provides a synthesis on the question of business attitudes towards and its influence over the development of the modern welfare state. It gathers leading scholars in the field to offer both in-depth historical country case studies and comparative chapters that discuss contemporary…

The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.

On 1 April 2020, Ivan Romashchenko defended his thesis 'Related Party Transactions and Corporate Groups: When Eastern Europe Meets the West'. The doctoral research was supervised by Prof. S.M. Bartman en Prof. A. Radwan (Kaunas, Lithuania).

On 21 March 2018, the Dutch people will vote for local their municipality board. In preparation for these elections, the local lobbying groups are more than ever present to voice their own local interests. Arco Timmermans, Endowed Professor Public Affairs at Leiden University, discusses these groups…

The Leiden Political Economy Group (L-PEG) is a multi-disciplinary network of scholars with a research interest in (comparative / global) political economy based at Leiden University. Our members belong to various institutes and faculties across Leiden University, and from other universities across…

The development of space resource activities is happening now. In the absence of a clear framework to govern these activities, there is a need to examine the concepts that are being discussed in order to ensure that they meet existing treaty obligations regarding on-orbit operations and space resource…

This study examines recovery planning committees across Japan's Tohoku region.

Public Affairs will immerse you in the relationships between public organisations and external actors. How do they influence each other? What role do interest groups, lobbyists and (social) media networks play? You will receive lectures from professionals with experience in public administration, on…

People prefer to reward cooperative behaviour than punish egotistical behaviour, even if this egotism has a negative effect on others. This is the conclusion of organisational psychologist Welmer Molenmaker in his research on the willingness to reward or punish cooperative behaviour. PhD defence 19…

Discussion Group

Discussion Group

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Discussion Group

Discussion Group