Madeleine O. Hosli, Professor of International Relations, wrote this book in which she analyses the complex relations between the European Union (EU) as a regional organization and the United Nations (UN) as an international, global governance institution.

The Summer School ‘The European Union, the United Nations and Global Governance’ will focus on a range of topics relevant to interactions between the European Union (EU) and the United Nations (UN) and the EU’s role within current patterns of global governance.

Madeleine O. Hosli & Jaroslaw Kantorowicz analyze EU states' foreign policy divergence at the UN General Debate, assessing if Lisbon Treaty reforms increased EU cohesion or if states maintain distinct positions.

Schatten uit het oude Armenië

Just published: United in incoherence – Private law concepts under pressure from European financial law (in Dutch), in: Tijdschift voor privaatrecht 2017-4

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Medicine with The Wistar Institute in the United States.

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.

The Microscopy Unit houses, maintains and coordinates most of the microscopy equipment of the IBL. The available equipment ranges from conventional light and fluorescence microscopes, to confocal laser scanning and electron microscopes. In addition, infrastructure is available for histology, including…

This is an Erasmus+ International Credit Mobility project of Leiden University Medical Center with Boston Children’s Hospital in the USA.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with University of California.

Promotor: F.J. van Lunteren, E. Jorin

Systematisch geordend naslagwerk voor alle stadsrechten in Nederland

De semantiek van Aristoteles: waarheid en betekenis in het tijdperk van het darwinisme

Book project on how European policy is made and implemented, with a focus on how that process can be understood and lead to policy change.

Voor zowel archeologen, paleontologen en geologen als vrijwilligers in de archeologie en paleontologie is het geen verrassing meer dat op de stranden van de Nederlandse kust fraaie vondsten gedaan kunnen worden. Vele artikelen, boeken, tentoonstellingen, congressen, lezingen, ‘zoekdagen’, krantenberichten,…

This monograph, written by dr. Dennie Oude Nijhuis and published by Cambridge University Press, discusses the postwar development of the welfare state.

Discover the new MSc in Public Sector Economics at Leiden University, offered entirely in Dutch. This program prepares future policy economists by bridging economic theory, Dutch institutions, and real-world policy challenges. Starting September 2025 in The Hague, it focuses on key issues like inequality,…

Taal als sleutel tot het begrijpen van de mens.

De lichtheid van literatuur: Engagement in de multiculturele samenleving (The Lightness of Literature: Engagement in the Multicultural Society) is a plea for the social relevance of literature. The book delves into an age-old debate about literature and social engagement, which has recently been reinvigorated…

The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

De positie van kunst en kunstenaars in de westerse samenleving

Are you thinking about studying Management van de Publieke Sector: Politiek, Beleid en Management? Learn more and watch thevideos. Please note that this programme is taught in Dutch.

Are you thinking about studying Management van de Publieke Sector: Bestuur en Advisering?Learn more and watch the videos. Please note that this programme is taught in Dutch.

On 12 January 2022, Mirjam Franke defended the thesis 'Over de grens van de onrechtmatige daad'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. J.H. Crijns.

This article devises a framework to assess the degree to which human rights bodies provide duplicating or contradicting recommendations to States. Focusing on the case of torture, it creates an original database of recommendations delivered to 14 countries in the years 2012–2016. Results show that duplications…

Madeleine Hosli, Professor of International Relations at Leiden University, together with two other authors, wrote a chapter in Group Politics in UN Multilateralism. This chapter assesses the composition and functioning of the African Union (AU) within the United Nations.

The Team International Relations and European Studies addresses the interconnections and interdependence of contemporary global political, economic, security and culture from a multidisciplinary perspective rooted in the humanities. More specifically it is concerned with the study of international relations…

On 14 November 2019 Niek Schipper defended his thesis 'De invloed van de woonplaats op de fiscale behandeling van grensoverschrijdende werknemers'. The doctoral research was supervised by Prof. S.C.W. Douma and Prof. J.P. Boer.

This publication is in Dutch. Please consult the Dutch page.

Deze onderzoeksgroep richt zich op het thema ondermijning en financieel-economische criminaliteit, in het bijzonder de aanpak ervan op een aantal deelterreinen.

In this article, Kuipers and Timmermans analyze the first lady's relationship with policy problems in the period 1945-2013.

De rol van de Raad van State staat opnieuw ter discussie. Kritiek uit de politiek botst met staatsrechtelijke analyses, terwijl experts waarschuwen voor aantasting van het gezag van het instituut. Staatsrechtgeleerde, Wim Voermans, duidt de zaak in een artikel van JAS nieuws.