Philosophy, Politics and Economics (PPE) in Leiden is a unique interdisciplinary master’s programme, considering topics of freedom, justice and citizenship in the 21st century. Watch this video to learn more about the programme!

Honorata Mazepus, Assisstant Professor at Leiden University, researched the topic of Madisonian Judgments in Five Cultures, together with three other authors.

The annual World Economic Forum (WEF) is underway, and it is a key instance for world leaders to adress global and regional challenges. The organisation expects to convene over 3,000 leaders from more than 130 countries. However, there is rising concern about the number of key leaders that will not…

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

Researchers from the Department of Tax Law were lead authors of a report on corporate taxation and digitalization for the World Economic Forum.

University is often a period of sexual exploration and experimentation, generally to the satisfaction of all involved. But sometimes you want it and the other doesn’t. Or vice versa. Or you can’t really tell. This is what the Safe Space play at Theater Ins Blau was about on 11 October. And: can your…

Healthy lifestyle campaigns are often unsuccessful. It is hard to get people to eat healthily or do more exercise. Behavioural science expertise should be drawn on at a much earlier stage in policy development, say twelve behavioural scientists in a position paper. They will present the paper to Maarten…

Population growth, economic expansion and the associated land use caused an increase in the number of bird species facing extinction and a reduction in carbon storage worldwide. These are the findings of an international team of scientists, also from the Leiden University Institute of Environmental…

On 5 July 2021, GTGC Chair Jan Aart Scholte moderated a panel on digital data governance during the 2021 Conference of the Society for the Advancement of Socio-Economics (SASE).

It is sufficiently plausible that, during her employment, a professor of archaeology at Leiden University was guilty of prolonged transgressive and unacceptable behaviour, ‘which also at that time could be classed as unacceptable’.

Foreign investments in the Dutch East Indies during the colonial period could have been of more benefit to the Indonesian economy. Foreign investments in the Dutch East Indies during the colonial period could have been of more benefit to the Indonesian economy. But the complicated relationship between…

Why do climate models still prioritise economic indicators over human impact? In a podcast of Land & Climate, environmental scientist Inge Schrijver highlights a critical blind spot in how climate change is assessed.

Silk Road Virtual Museum - A virtual museum of the art and culture of the regions that lay on the trade routes between Europe and Asia, popularly known as the ‘Silk Road’.

The Executive Board of Leiden University has appointed Dr Tom Louwerse as Professor of Political Behaviour and Research Methods at the Institute of Political Science.

The researchers examine the Council of the European Union's voting behaviour between 2010 and 2021 and the impact of different independent variables.

This is a difficult time. Above all, for all those directly involved in this horrible case – unacceptable behaviour by a professor and his removal from the University – the case we went public about on 18 October and that has been reported in the media. This is painful and tough for the complainants…

The research master's specialisation Social and Economic Psychology consists of five main parts: the general courses, the track-specific courses, the elective courses, a research internship and a thesis.

I am an associate professor in health psychology here at the Faculty of Social and Behavioural Sciences. My main line of work is health behaviour and behaviour change, so trying to understand why people do what they do including clearly unhealthy things. I have done a lot of work on personal goals and…

A professor from Leiden University has subjected various colleagues to intimidating and unacceptable behaviour for a longer period. These are the findings of an investigation carried out by the University’s independent Complaints Committee for Unacceptable Behaviour at the request of the Executive Board…

Philosophy has an important contribution to make to society, says Professor of Practical Philosophy Glen Newey. You need people who can think clearly, certainly in positions of power and authority. Newey stresses that “there will always be a place for philosophy”. An introduction to the practically…

From 5-7 November 2018, The Hague Program for Cyber Norms held its inaugural conference at Het Spaansche Hof in The Hague, where they were joined by scholars and participants from across the world, for three days filled with four keynotes and 19 presentations during the parallel sessions.

The United Nations Office for Disarmament Affairs (UNODA) has published the 2017 issue in their Civil Society and Disarmament series, titled Voluntary, Non-Binding Norms for Responsible State Behaviour in the Use of Information and Communications Technology: A Commentary. The series aims to provide…

Working towards resilient communities, transparency in science and connecting with the employment market – these are the three key themes being addressed by the departments of Social and Behavioural Sciences at Dutch universities. On 11 February, they presented a joint sector plan to Marcelis Boereboom,…

The Faculty of Social and Behavioural Sciences has become a lot healthier, thanks to the first Healthy Faculty event on 29 and 30 October, 2015. Health Psychology master’s students organised workshops for both students and staff. Many of them attended these inspiring workshops and already put the gained…

Each year, Latin American diplomats meet the researchers and students from Leiden University who specialise in their region. This year, they visited the Faculty of Social and Behavioural Sciences. ‘The social and behavioural sciences have improved our understanding of social unrest.’

These are turbulent times in the UK. The cost of living is high, leaving many people struggling to make ends meet, and these past few months have been tumultuous in terms of politics. University lecturer Anne Heyer explains what impact this can have on people's political perceptions and participatio…

From 5 – 7 November the The Hague Program for Cyber Norms will take place at Het Spaansche Hof in the Hague. The theme this year is Behaviour in Cyberspace: Novel Horizons.

Moving Romans offers an analysis of Roman migration by applying general insights, models and theories from the field of migration history.

This project focuses on urban commercial space in Roman Italy and deals with the impact of economic growth on urban communities in the late Republic and the Imperial period (200 BCE – 300 CE).

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…

Teacher training should do more to prepare teachers for the pedagogical aspects of teaching, Professor of Educational Sciences Tim Mainhard will argue in his inaugural lecture. ‘Children who find learning difficult particularly benefit from a close relationship with their teacher.’

Jurist Gineke Wiggers wants to predict the expected impact of legal articles. Carel Stolker, Rector of the University and, like Wiggers, a legal specialist, is enthusiastic about the research. ‘A big data project like this will help us establish the effect of our work on society.’

The contributions in this volume seek to highlight the atypical features of the Hanse, and place them in a wider context of common roots, influences and parallel developments.

A study on the development of prosocial behaviour.

A consortium including economists, psychologists and public administration scholars from Leiden University will study public acceptance of the hydrogen transition in the Netherlands. They will look at the labour market impact, public perceptions of hydrogen and businesses’ willingness to invest.

The World of the Fullo takes a detailed look at the fullers, craftsmen who dealt with high-quality garments, of Roman Italy. Analyzing the social and economic worlds in which the fullers lived and worked, it tells the story of their economic circumstances, the way they organized their workshops, the…

People are less willing to give up an interest when in a negotiation situation than when they can do it of their own free will, as Leiden University psychologist Eric van Dijk discovered. Knowledge of this kind can be used by policy makers, for instance, to motivate people to adopt certain desirable…

The European Regional Office of Astronomy for Development (E-ROAD) has held its first conference session at the 2020 virtual Annual Meeting of the European Astronomical Society (EAS), the largest astronomy conference in Europe. The E-ROAD is an initiative of the International Astronomical Union, the…

Antibiotic resistance is an economic problem. Pharmaceutical companies cannot earn much from antibiotic research, so they do not invest in it. This makes it important that universities do so, says Ned Buijs.

Jan Vleggeert is a tax specialist with an independent and critical voice in the debate on tax avoidance by multinationals. His appointment commenced on 1 October 2019.

Political scientist Femke Bakker (Leiden University) is going to investigate whether meditation affects political behaviour. Bakker has been awarded a PEACE Grant by the Mind & Life Institute, which enables her to conduct innovative, experimental research. The aim is an answer to the question whether…

Mapping the neural mechanisms underlying social motivations of adolescents and adults

The role of transnational, non-institutional networks in the opening up of British transatlantic trade at the end of the 17th/beginning of the 18th century

Promotor: C.J. ten Cate, Co-promotor: H.W. Slabbekoorn

Political scientists Joop van Holsteyn and Tom Louwerse (Leiden University) find that the Dutch government is having a hard time coping with referendum outcomes in general, and ‘anti-European’ sentiments among voters in particular.

Leaders of the ASEAN Member States, Australia, China, Japan, the Republic of Korea, and New Zealand have signed the Regional Comprehensive Economic Partnership (RCEP) Agreement.