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

In Dutch the public arena, there’s talk of curbing labour migration. Which options do the Dutch have? Olaf van Vliet, Professor of Economics at Leiden University, discusses this issue in Dutch daily newspaper NRC.

The popular French economist Gabriel Zucman visited the Netherlands last week, advocating an extra tax for billionaires. Egbert Jongen, Professor of Economics, spoke about the economist's proposals on NPO Radio 1's programme ‘De Rode Draad’.

Many of the big challenges of the 21st century (climate change, international migration, financial instability, socio-economic inequality) find their origins in the organisation of the global economy. Any solution to the world’s big challenges therefore requires forceful policy interventions at the…

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…

The first ILS Lunch Seminar of 2017 will take place on Monday 30 January. During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes are working on. During…

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

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.

After the kick-off on 28 November, the next ILS Lunch Seminar will take place on Monday 19 December. During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes…

How much mortgage interest can I claim back according to law? Or maintenance payments, how much do the tax authorities let me deduct? Many citizens struggle with questions about the application of tax legislation. Roberto van den Heuvel investigated in what way tax legislation should provide clarity…

PhD defence

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

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…

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)?

Op dinsdag 10 januari 2022 zijn tijdens de facultaire nieuwjaarsreceptie de jaarlijkse Meijersprijzen en de scriptieprijzen uitgereikt.

On Tuesday 12 January 2021, the annual Meijers prizes and thesis prizes were awarded at the online New Year’s event broadcast from the Old Observatory.

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.

The starting point for this research project is the notion that the human brain is susceptible to all kinds of fallacies and biases that affect our perceptions and influence our reasoning outside of our conscious awareness. Indeed, most people think they are merely observing facts and that they process…

Every other year, the Fédération Internationale pour le Droit Européen (FIDE) organises an international congress focusing on three topics in the field of EU law. This year’s congress took place from 31 May to 3 June in Sofia, Bulgaria. Gerrard Boot, Professor of Labour Law, acted as rapporteur during…

Marike Knoef has won an award on the 34th Award Ceremony of the World Cultural Council (WCC).

When an employee returns from an area considered to be a corona risk, can their employer require them to have a corona test? This is a complicated issue if you consider labour law and legislation in relation to privacy of employees. However in some cases Barend Barentsen, Professor of Labour Law, believes…

As of 1 October 2024, Professor Gerrard Boot, Senior Justice at the Amsterdam Court of Appeal, will transfer to the Central Appeals Tribunal. He has already been a Deputy Justice at the Tribunal for some time now.

The Netherlands Bureau of Economic Policy Analysis (CPB) has reappointed Professor Koen Caminada as Academic Partner for the sector Public Finance, and specifically Government Finance, as of 1 January 2017.

The research conducted by Tilburg University and Leiden University on the relationship between aggression among prisoners and the strictness of the prison regime has received much attention in the national media.

On 22 September, the Social Justice Expertise Center and the Dutch Association on Labor Rights (VVA) brought together eighty (Dutch) labor law lawyers to discuss the relationship between corporate social responsibility (CSR) and fundamental labor rights.

As of 1 January 2024, Gerrard Boot, Professor of Employment Law, has been appointed to act as deputy justice in the Central Appeals Tribunal.

On 28 August 2024, Lieke Beekers won the Young Economist Award 2024.

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…

(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…

Veel arbeidsongeschikten kregen jarenlang te veel of juist te weinig uitkering, omdat er fouten zijn gemaakt bij de berekening van het loon waarop de uitkering is gebaseerd. Barend Barentsen, hoogleraar Sociaal Recht, zegt op BNR radio, dat hij niet helemaal begrijpt hoe het zo fout heeft kunnen gaan…

The research report by the independent committee on the future of the work disability system in the Netherlands ('Onafhankelijke Commissie Toekomst Arbeidsongeschiktheidsstelsel' (Octas)) was published this week. While the number of people unable to work has dropped considerably, the system is still…

The new postgraduate course in Labour Law is set to be launched this September! For many years, it was a fantastic course for anyone wanting to enhance their knowledge following several years of practical experience. We’re delighted with the updated programme and teaching staff, who include top legal…