As of 1 January 2018 Irma Mosquera will be appointed as Associate Professor at the Institute of Tax Law and Economics of Leiden University.

The Dutch Tax Authorities leaked information about an international tax audit to Uber. In addition, they ‘obstructed and delayed’ an investigation by other EU Member States, says the International Consortium of Investigative Journalists (ICIJ) based on internal documents from the tech company.

The debate on tax evasion by multinationals is in full swing in many Member States. Last week it was announced that the European Commission has started an investigation into possible illegal State aid from the Netherlands to Nike. It is likely that dozens of other companies are getting away with it.

Mees Vergouwen heeft op 18 juni de dissertatieprijs van De Vereniging voor Belastingwetenschap gewonnen. Hij promoveerde in 2023 op een proefschrift over ‘botsende belastingregels’. De fiscalist kreeg de prijs voor het beste proefschrift van de afgelopen twee jaar.

Each week, Dutch radio programme BNR Lobbypanel discusses a topic at the intersection of politics and entrepreneurship. From 2020 Arco Timmermans, Professor by special appointment Public Affairs, will participate each month in the BNR Lobbypanel discussions. This week Timmermans joined the discussion…

On Thursday 7 and Friday 8 December 2017, Leiden University’s Hazelhoff Center for Financial Law and the European University Institute in Florence jointly organized a PhD workshop in Leiden.

Hastings College of the Law and Leiden Law School have a longstanding exchange programme. Each year students participate in the existing student exchange programmes. Likewise professors from Hastings College of Law have been visiting Leiden Law School and vice versa.

Students awarded the highest scores to Leiden University and the Radboud University Nijmegen. These are the findings of an annual survey by Elsevier into the best study programmes in the Netherlands. Elsevier Magazine has a weekly readership of half a million, making it one of the most iinfluential…

Deadline approaching: Applications are still open for the Summer School ‘The European Union, the United Nations and Global Governance’ (16 - 20 June 2025) for Master-level and PhD students. Application deadline: 15 May 2025.

The Summer School ‘The European Union, the United Nations and Global Governance’ is open to Master-level and PhD students. It is supported by the European Union’s Jean Monnet program.

In many Dutch bankruptcy cases, ‘irregularities’ occur such as mismanagement or funds being diverted. Jessie Pool, Associate Professor, spoke to ‘Follow the Money’ about suspicious bankruptcies: ‘Litigation can last a long time, cost a lot, and ultimately yield nothing.’

Het team van vier studenten fiscaal recht heeft zich geplaatst voor de finale van de meest prestigieuze wereldwijde pleitcompetitie op het terrein van internationaal en Europees belastingrecht.

At the end of June 2021, The Dutch Ministry of Finance made a policy document public that dates back to 2016. In it, civil servants acknowledge that the Netherlands risked providing unauthorized State aid to American multinationals by allowing them to use a controversial, but favourable, fiscal construction:…

On Friday, June 12th, the Europa Institute held its annual PhD Day.

The monthly ILS Lunch seminars bring together colleagues and students from Leiden Law School, providing an informal setting to hear what researchers from other research programs and institutes are working on. On Thursday 17 October 2019, a new edition of the ILS Lunch Seminars takes place. This month,…

The Leiden Leadership Programme (LLP) employs experts in the field of leadership. They equip LLP students with the necessary leadership knowledge, insights and skills to increase their social impact.

Recently, Wim Voermans, Professor of Constitutional and Administrative Law, and Jaroslaw Kantorowicz, Assistant Professor at the Institute of Security and Global Affairs and a research associate at the Department of Economics, were awarded a grant from the KNAW Statesman Thorbecke Fund. This grant will…

Agressief gedrag van gedetineerden is sterk te verlagen met een aantal aanpassingen in het dagelijkse regime in penitentiaire inrichtingen. Dit blijkt uit de evaluatie van een experiment met een alternatief detentieregime, uitgevoerd door Tilburg University en de Universiteit Leiden.

On Monday December 17th the ILS 2.0, SOLID project will hold an afternoon Symposium on ‘Challenges to European Integration: welfare states and free movement in the EU’ from 11.45 – 16.30. The symposium will take place in room A.014 at the Kamerlingh Onnes Building (Steenschuur 25) of Leiden Law Scho…

On Thursday 19 September, the first ILS Lunch Seminar of this academic year took place. Clare Fenwick and Ilya Kokorin gave two very insightful presentations in this very well visited edition of the Lunch Seminars.

On Thursday 10 January a number of prizes were presented to researchers and students.

On 18 January 2018, the inaugural ILS PhD Workshop took place, featuring two Interaction Between Legal Systems lectures by the invited academics Prof. Gareth Davies and Aristi Volou, as well as presentations by the six ILS PhD researchers.

An investigation carried out by Dutch news programme Nieuwsuur has revealed that despite a recent ruling by the Centrale Raad van Beroep (Central Appeals Tribunal, CRvB), people who for years cared for a seriously ill relative paid for via a PGB (persoonsgebondenbudget, personal care budget) do not…

The Netherlands cannot stop European labour migrants coming here. Nor does The Hague have much influence on the influx of asylum seekers. But experts believe that we should be able to reduce the need for labour migrants by using intelligent economic policies.

We produce more data than ever before, and researchers gather more and more information. That data contains a wealth of insights and new possibilities. But how do you extract them? In Leiden, statistics and information science come together in innovative multidisciplinary research. Read more in the…

Together with a group of researchers from TU Delft and Erasmus University, Leiden University have received a seed grant for conducting a project “Perceived Risk of Terrorism and its Implications for (Counter-Terrorism) Communication Strategies”.

Leiden University is going to offer two new Economics degree programmes at its campus in The Hague: the bachelor’s in Economics and Society and the master’s in Public Sector Economics. The NVAO has decided to award accreditation to both programmes, which will be taught in Dutch. The bachelor’s programme…

69% of young Dutch people are struggling financially. They’re more likely to take risks by gambling, investing in cryptocurrencies or paying on credit. Like most Dutch people, the young are turning to family and friends for help and advice, rather than experts.

The Summer School will take place from 14-25 June 2021 and welcomes Master-level and PhD-level students who are interested in learning more about the interactions between the EU and the UN and the EU’s role within current patterns in global governance.

Applications are now open for the Summer School ‘The European Union, the United Nations and Global Governance’ (12 - 23 June 2023) for Master-level and PhD students. The activity is supported by the European Union’s Jean Monnet programme (Erasmus+).

Tim Koopmans is one of the great minds in the history of Dutch and European legal scholarship. He taught law as a professor in Leiden and other universities, among which Ghent, Cambridge, Utrecht. He practiced it as a judge in the European Court of Justice and Advocate-General in the Dutch Supreme Court,…

ELS@Leiden research encompasses a wide range of empirical-legal projects carried out within Leiden Law School from the perspective of multiple disciplines and methods. Here you can find the publications of our (former) lab members since the start of the Sector Plan.

On Thursday 8 December at 15.00 hrs, Fred van Haasteren will defend his doctoral thesis ‘Fatsoenlijke flexibiliteit – De invloed van ILO-conventie 181 en de regelgeving omtrent uitzendarbeid’ (Decent flexibility - The influence of ILO Convention 181 and legislation on temporary agency work) at the…

Five lecturers from Leiden University have received a Comenius teaching award. With the grants they can carry out an innovation project.

The ‘Leids Universiteits Fonds’ (LUF) award grants to research and educational project in various academic fields once a year. This year, Honorata Mazepus, Tanachia Ashikali, and Jaroslaw Kantorowicz of the Faculty of Governance and Global Affairs were three of the recipients of such a grant.

Dutch political parties have presented their own 'solutions' to make society 'safer'. How do the party positions compare with scientific research on crime reduction?

After the summer break, the ILS Lunch Seminar series is back for its fourth and final year. These monthly seminars present the perfect opportunity to unite the different institutes situated within Leiden Law School and have steadily developed into somewhat of a tradition. On Thursday 19 September 2019,…

Adults are more likely to reoffend after a short prison sentence than comparable adults with a non-custodial sentence, Leiden University research shows. This is true for the likelihood and extent of repeat crime.

The research profile area Interaction between Legal Systems has a multidisciplinary approach and aims to inspire innovative research. Out of all the proposals put forward, three winning projects have been selected for the forthcoming research period 2016-2020.

Arbeidsuitbuiting van migranten wordt als een vorm van het strafrechtelijke delict mensenhandel beschouwd. De rechtspositie van de slachtoffers is mede daardoor ondergeschikt aan de strafrechtelijke procedure. Dat kan en moet anders, stelt Gerrie Lodder in haar proefschrift. Promotie op 21 april 202…

Anti-immigration protests over asylum seekers receive extensive attention, but PhD candidate Clare Fenwick says it’s a vocal minority taking to the streets. 'The silent majority might also have migration concerns, like job losses due to labour migration, but these views seem to remain outside public…

Gaan vaders minder werken als andere vaders dat ook doen? Helpt betaald ouderschapsverlof hen om meer op te pakken in het huishouden? Hoe bepalend zijn sociale normen voor verschillen op de arbeidsmarkt? Onderzoeker Max van Lent gaat het uitzoeken.

The thesis “Exit Peter Paul? Divergente toezichthoudersaansprakelijkheid in de Europese Unie voor falend financieel toezicht, bezien vanuit het Europeesrechtelijke beginsel van effectieve rechtsbescherming” (Exit Peter Paul? Divergent supervisory liability in the European Union for failing financial…

Will British universities become isolated after Brexit? The University of Oxford has set up a new programme for excellent young researchers to try to prevent that happening. Two Leiden PhD candidates are taking part. 'We have lost a lot of the citizens of Europe.'

On Thursday 14 December at 16.15 hrs Michal Diamant will defend her doctoral thesis that addresses the right to assess the budget of the Dutch parliament in light of European economic governance. The defence will take place at the Academy Building of Leiden University. Supervisors are Professor Wim…

That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

From 16 to 20 June 2025, the Institute of Security and Global Affairs of Leiden University hosted the annual Summer School The European Union, the United Nations and Global Governance in The Hague. The programme brought together recent graduates, PhD students, and young professionals from a variety…

Bankruptcy fraud is not being combatted effectively. When the trustee finds irregularities, the fraudster is not always punished. Politicians and the court case involving fashion chain Miss Etam’s ‘rescuer’ have rekindled the debate on bankruptcy fraud.

Sandra Palmen studied tax law at Leiden University and built a career within central government, currently as State Secretary. She was one of the first to raise the alarm about the child benefits affair and is now righting the wrongs.

Guus Heerma van Voss, professor emeritus of labour law, delivered his farewell lecture on 18 October and held a mirror up to his colleagues and himself. Had they done enough to ensure the welfare state keeps up with the times? ‘Did we just stand by and watch?’