Over the last decades, income inequality has increased globally. How do social policies affect this increasing trend? How do international trade and technological progress affect inequality? What is the profile of income inequality in China?

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

This article argues that opposition to government green investments is conditional on the method of financing.

This thesis studies the relationship of the town al-Fusṭāṭ, located at the southern end of the Nile delta in Egypt, and its hinterland in the period between the town’s foundation in A.D. 641 and the arrival of the Abbasids in 750.

Loneliness and social isolation have become a significant problem in contemporary Japan. The financial burden associated with an ageing population has severely constrained the ability of local authorities to address the problem. As a result, policymakers have sought cost‐effective methods of tackling…

In this article, Samir Negash, PhD candidate at the Institute of Public Administratation, discusses the discrepancy in European countries between the measured impact of immigration on the welfare state and how this impact is perceived by citizens.

This research project is funded by a subsidy from Instituut Gak.

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…

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…

On 2 Juni 2021, Maarten Manse defended his thesis 'Promise, Pretence and Pragmatism: Governance and Taxation in Colonial Indonesia, 1870-1940'. The doctoral research was supervised by Prof. R. Arendsen.

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

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 research conducted is centred around three themes. Within the different themes a multi-level approach is used, focussing on issues at the level of the health care system, the level of organizations and networks of organizations and at professionals within organisations.

The Institute of Public Administration in The Hague conducts leading research on contemporary policy and management processes within the public sector.

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.

Great news: the MOOC

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…

The FOI project has a number of topics it aims to investigate. These are: State, Economy, Culture and Papyri. You will find links to bibliographies on this page.

Sociaaleconomisch Beleid: Empirische Analyse is a new course for those students on the Bachelor’s programme in Public Administration who are following the specialisation in Economics, Administration and Management.

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

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.

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.

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.

Over 1600 pupils from primary schools in Leiden and The Hague were taught by a professor of Leiden University on the 444th anniversary of our university. Three professors from the Faculty of Governance and Global Affairs, visited several classes of group 7 in The Hague.

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)?

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

The Cleveringa chair was installed by Leiden University in memory of Professor Rudolph Pabus Cleveringa and the courage he demonstrated in November 1940 during the German occupation . It also commemorates the liberation of the Netherlands in 1945.

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

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.

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

Thursday afternoon 31 May the Public Leadership Challenge took place in the Living Lab, of Leiden University The Hague. During this afternoon a diverse group of professionals, academics and students focused on the challenge of autonomy in the digital society. Working together on this complex and interesting…

(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?

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.

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.

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

The Leiden Political Economy Group (L-PEG) is a multi-disciplinary network of scholars with a research interest in (comparative / global) political economy based at Leiden University. Our members belong to various institutes and faculties across Leiden University, and from other universities across…

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.

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…

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…

Municipalities claim successes in the fight against radicalization. But when do you call deradicalisation policy a success? Trouw gives 4 options.

Egbert Jongen is appointed Professor of Economics and Socio-Economic Policy at Leiden University from 1 November 2023. His expertise is in the field of socio-economic policy, inequality, and the labour market.

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

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…

Migrants are far less of a burden on the budget of European countries than is often thought. This is the conclusion of research by economists from Leiden University.