PhD candidate Manon Wintgens is using an algorithm to trawl through thousands of international tax treaties. She hopes to detect a system in the dizzying interplay between countries, businesses and documents. It is a unique research project.

Professor Sjoerd Douma has been named the top lecturer on Coursera, the best-known platform for online courses. Students gave him an average score of 9.8 - almost unheard of for a lecturer in International Tax Law.

On Thursday 17 October 2019, the second ILS Lunch Seminar of this academic year took place. Hanneke Bennaars and Prof. Frans Sonneveldt gave two very insightful presentations.

Title research: Policy and practical challenges of the extractive industry in developing countries: Resource governance in Kenya.

Heike Vethaak is assistant professor at the department of Economics.

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,…

On Friday 17 November 2017, H.E. Dr. María Fernanda Espinosa, Minister of Foreign Affairs and Human Mobility of the Republic of Ecuador gave a lecture on Fairness in Global Taxation at the Grotius Centre for International Legal Studies at Leiden University, Campus The Hague.

In the podcast Het Geldspoor, Professor of Tax Law Jan van de Streek speaks about the profession of tax advisers. 'Tax consultants should take a firmer stance more often’, says Van de Streek.

In 2024, many of our students and staff won great prizes and secured important research grants.

The consequences of social tendencies for the legislation and institutions in the fields of social security, the labor market policy and pension reform are examined in this multdisciplinary research program..

Recent welfare reforms in the Netherlands show a trend of reducing welfare accessibility and increasing obligations. Although the effects thereof on directly-targeted economic outcomes, such as welfare dependency and labor participation, are often assessed, potential spillovers to other economic and…

In the podcast EU Scream, a non-for-profit organization based in Brussels, Martijn Nouwen tells about his research into communications about European tax rulings.

Jaewook Lee is postdoctoral researcher at the department of Economics.

Ian Koetsier is a lecturer at the department of Economics.

Daniel Fernandes is a post-doctoral researcher at the Department of Economics, Leiden University.

Ernst-Jan de Bruijn is an Assistant Professor of Economics at Leiden University

Mark Noort joined the department of business studies at Leiden Law School in September 2020 to commence teaching and researching on topics related on the cross-section of law and psychology, with emphasis on organisational behaviour, culture and organisational decline.

Simona Cicognani is an Assistant Professor at the department of Economics of Leiden University.

Lieke Beekers is an Assistant Professor of Economics at Leiden University.

Anna-Lena Nadler is a post-doctoral researcher in the TransEuroWorkS project.

Marc Broekema is a professor of Corporate Valuation, Mergers & Acquisitions, and Restructuring at the University of Groningen and affiliated with Kroll, a global financial and risk advisory firm. He focuses primarily on complex corporate valuation issues, economic damage assessments, and bankruptcy…

Paulien obtained her bachelor's and master's degrees in Applied Economics, with a major in Human Resources and Organization, from KU Leuven (Belgium). In 2024, she obtained her PhD from the same university with a dissertation on career inertia. Her quantitative research focused on the hindering role…

Daniëlle Nieuwold is lecturer at the Department of Economics.

Richard Karlsson Linnér is an assistant professor at the Department of Economics at Leiden University.

Luís is a post-doctoral researcher at the Department of Economics, Leiden University.

The Irish meat magnate Larry Goodman is under scrutiny: he is thought to have evaded taxes by using a Dutch company, among other things.

Social assistance and minimum income benefits are important instruments as a safeguard against low income and poverty. There have been major developments in minimum income benefits both in developed and developing countries over the last decades. Our study collects several empirical studies regarding…

By comparing the archaeological evidence at Sedgeford and other sites located on both English and Continental coastal zones, what evidence is there for a shared maritime culture between these North Sea communities? Also if evidence is found, can we reveal to some extent a separate coastal identity to…

Jean Monnet is the part of Erasmus+ dedicated to promoting excellence in EU studies in higher education around the world. Jean Monnet Actions aim to build bridges between academics, researchers and EU policymakers. There is an emphasis on the study of and research on EU integration and in understanding…

It researches (the possibilities for) the development of a set of principles and best practices for insolvency office holders by comparing multilateral treaties and soft law recommendations and national legislation within Europe.

The centre stimulates discussion and debate on the EU , European integration and the EU’s impact on European citizens. Special attention is given to the Netherlands, were support for EU integration seems to be in decline as evidenced by the rejection of the Constitution in Europe in 2005 and the forthcoming…

The Faculty of Governance and Global Affairs is one of a total of seven faculties of Leiden University, located in The Hague.

The lecture series “Humanity in the Automated State” continued on February 12, 2026, at Leiden Law School with Professor Madalina Busuioc of VU Amsterdam, a public governance scholar, AI-DG Lab co-director, MSc programme founder, and recipient of a European Research Council grant.

The launch of the 'Toolkit for the Design and Effective Implementation of Domestic and International General Anti-avoidance Rules' generates strong interest among tax administrations.

The Netherlands remains one of the most important locations when it comes to tax evasion. According to Tax Justice Network only the British Virgin Islands, the Cayman Islands and Bermuda play a greater role.

Labour law is constantly changing. Concurrently, the laws dealing with workers address fundamental issues which are invariably of major significance and value. The research carried out at the Department of Labour Law and Social Security focusses on both the (constant) changes in labour law and social…