This paper explores whether multilateral surveillance and policy coordination under the ES was based on a path-changing or a path-dependent mechanism

On 13 September 2023 Eline Scheerlinck successfully defended a doctoral thesis and graduated.

New: Een Podcast over Natuurkunde, a podcast about Leiden physics. In the first episode, Dirk van Delft tells about the Hendrik Antoon Lorentz biography that he wrote with Frits Berends.

What started as a call for help in a Facebook group turned into a permanent group of students from the Bachelor's in Russian Studies and the Master's in Russian and Eurasian Studies who regularly help the Ukrainian refugees. They act as the link between the refugees and aid workers at various reception…

In dozens of study rooms, libraries and laboratories, passionate scientists – with the support of the donors of the Leiden University Fund – are working on a fundamental understanding of the world and the people around us. They make the unknown known and push the boundaries of existing fields of sci…

What made the early Islamic empire so successful and have we missed the story by neglecting crucial evidence? The 7th-century Arab conquests changed the socio-political configurations in the Mediterranean and Eurasia forever. Yet we do not really know how the Arabs managed to gain dominance of this…

The Faculty of Law

In dozens of study rooms, libraries and laboratories, passionate scientists – with the support of the donors of the Leiden University Fund – are working on a fundamental understanding of the world and the people around us. They make the unknown known and push the boundaries of existing fields of sci…

How was time understood during the colonial period by Tlaxcaltecan Naua communities? What is the relationship between time, spirituality and ritual in the present-day Naua community of Santa Catarina? What does this tell us about the strengths and values of Indigenous heritage and about the impact of…

PhD defence

In het onderzoek van docent Martijn Nouwen wordt voor het eerst aan het grote publiek blootgelegd hoe de ‘geheime’ Europese Gedragscodegroep er niet in is geslaagd om verschillende vormen van schadelijke belastingconcurrentie uit te bannen.

Colonialism Inside Out: Everyday Experience and Plural Practice in Dutch Institutions in Sri Lanka (c. 1700-1800)

The progression of EU law: Accommodating change and upholding values Coordinator: Dr. Moritz Jesse

Below you will find a collection of books, other than those in the BLRN book series, to which members of BLRN have contributed.

Multinationals use loopholes in the tax treaties between different states. A possible solution would be to eliminate all these loopholes in one go by creating a central global treaty. Leiden researchers are investigating whether this kind of mega-treaty is feasible.

Samir Negash, PhD candidate at Leiden University and Olaf van Vliet, Professor by special appointment Comparative Welfare State Analysis at Leiden University wrote a paper regarding the topic of immigration and the conditionality of unemployment benefits in OECD countries.

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.

Hoogleraar Internationaal Belastingrecht Tanja Bender heeft een vermelding gekregen in het boek Recognising 100 Years of Women in Tax.

In the last week of January, Prof. Rex Arendsen and PhD candidate Maarten Manse of the Department of Tax Law at Leiden Law School, taught an ‘Intensive Course on Tax Law' at the Gadjah Mada University (UGM) in Yogyakarta. This week of lectures illustrates the fruitful cooperation between both univer…

Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…

What can we learn from how maritime conflicts were managed in the past? What significance did Maritime Conflict Management have in shaping the standards of diplomacy and international law in pre-modern Atlantic Europe (1200-1600)?

The majority of professors of tax law in the Netherlands have links to accounting and law firms, writes Dutch newspaper De Volkskrant.

On Monday 20 November, a combined ILS/LRL (Leiden Research Lunch) took place.

Wat betekent belastinghervorming in de VS? Hoe groot is de invloed van belastingontwijkende multinationals op belastingconcurrentie in ontwikkelde en ontwikkelingslanden? En wat zijn de problemen met belastinguitgaven? Op 7 november vindt een GLOBTAXGOV-T20-seminar plaats op de Campus Den Haag van de…

Proud. We did it. All the Ginis. Open Access. Income inequality and Fiscal Redistribution in 47 countries 1967-2014.

Jan Vleggeert, Professor of Tax Law and Economics, voices criticism in Dutch newspaper Financieel Dagblad about the ‘two hats’ worn by academics whose field of study is tax law.

Many academics involved in the area of tax law are also employed by a commercial tax advisory firm. In his inaugural lecture of 30 October 2020, Prof. dr. Jan Vleggeert argued that this combination of 'hats' can undermine the independence of fiscal research and can result in the erosion of the Dutch…

Professor of Developmental Biology Christine Mummery and chemist Dr Dennis Hetterscheid have each been awarded an ERC Proof of Concept grant. These grants are to explore the societal potential of ideas generated in previous ERC-funded projects.

(1) What are the institutional factors that influence AI adoption and implementation? and (2) How does AI reshape the exercise of administrative discretion within public organisations, and how do adoption and implementation choices moderate these effects?

In this project the already developed parcel based historical GIS (HISGIS) for the Dutch province of Friesland (Frisia) will be extended with a series of crucial datasets and map layers.

Course, Summer School

Loopholes in international tax legislation contribute to the misuse of tax rules by multinationals. Leiden University legal experts investigate how the complex national and international tax rules can be made more consistent in order to create a better tax system.

The minor ‘(Inter)national Tax Planning and Policy’ offers a programme for career-oriented students, combining a strong focus on skills development with state-of-the-art knowledge of the (inter)national tax arena in which the interests of stakeholders – businesses, citizens, NGO’s, governments and states…

When Professor of Tax Law Jan Vleggeert delivered his inaugural lecture in Leiden University’s Academy Building on 30 October 2020, only 30 people were allowed to attend due to coronavirus measures. On 10 June 2022, Vleggeert was therefore given the opportunity to deliver a lecture to a much larger…

On Thursday 10 January the annual Meijers prizes were awarded for the best published article, of each faculty research programme, written by Assistant Professors or other academic staff members. The winners received a certificate and a sum of money to spend on research.

The Koninklijke Hollandsche Maatschappij der Wetenschappen (Royal Holland Society of Sciences and Humanities) has appointed Koen Caminada, Professor of Empirical Analysis of Tax and Social Policy, as a member.

Lieke Kools has won a Netspar PhD Thesis Award 2020 with her dissertation ‘Essays on wealth, health, and data collection’.

Every year, more than three thousand businesses are declared insolvent in the Netherlands. The purpose of bankruptcy is to divide the assets of these companies among the creditors. However, the value of the claims of the creditors often exceed the value of the assets of the company

The story of Tutankhamun, the Egyptian pharaoh, is world famous. But did you know that the Ancient Egyptians mummified not only people but animals too? The National Museum of Antiquities in Leiden recently put a bunch of animal mummies through a CT scanner. This was in collaboration with Canon Netherlands…

This year’s EUSA biannual research conference, which took place in Miami in May 2017, saw a large delegation of the Europa Institute Leiden leaving its mark. In several panels, Prof. Luuk van Middelaar, Dr. Moritz Jesse (Associate Professor at the Europa Institute), Dr. Armin Cuyvers (Assistant Professor…

On 8 September the students of the European Law Master gathered in the Lorentzzaal for the festive opening of their programme.

On the occasion of Euroscience Open Forum 2022, Professor Attiya Waris (Director of Research and Enterprise and Professor of Fiscal Law and Policy in Eastern Africa, University of Nairobi, Kenya), Professor Irma Mosquera Valderrama (Professor of Global Tax Governance, Lead Researcher GLOBTAXGOV ERC…

With Brexit looming, stronger economic governance of the European Union is more essential than ever. It’s high time for action, says Amy Verdun, Professor of European Politics and Political Economy. Inaugural speech on 27 September.

Voormalig demissionair staatssecretaris van Fiscaliteit en Belastingdienst Marnix van Rij gaf op 17 juni in samenwerking met universitair docent Esther Huiskers-Stoop een gastcollege over belastingrecht en duurzaamheid. Deze lezing werd op initiatief van student Darya de Wilt georganiseerd.

On 3 February 2021, Prof. Matthias Haentjens spoke at the second conference on bank resolution, jointly organised by the European Banking Institute (EBI) and the Single Resolution Board (SRB).

Irma Johanna Mosquera Valderrama, principal investigator of the ERC GLOBTAXGOV project and Associate Professor of Tax Law has participated in the T20 task force on Trade, Investment and Tax Cooperation under the Argentinian Presidency. As a member of the task force, she has contributed to the policy…

On Thursday 28 September, the Committee on Social Minimum, of which Koen Caminada is a member, presented its second report to outgoing minister for poverty policy in the Netherlands, Carola Schouten. The Committee was established by the minister at the request of the House of Representatives.

Unilever is considering staying in the Netherlands after all. This follows from draft legislation by the GroenLinks party introducing an exit premium that large companies leaving the Netherlands would have to pay to compensate lost tax income. Dutch radio programme BNR and newspaper the Volkskrant asked…