Leiden experts research ways in which European legislation is converted into national legislation. Knowing how this process works can inspire policy-makers trying to achieve their aims while abiding to Europan legislation.

From the smallest level of interaction among families and close friends, over the meso-level of schools, shops, churches, religious communities and companies, to the highest level of nation-states and international organisations: Language Policy and Planning (LPP) is everywhere!

This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.

Huub de Groot is professor in Biophysical Organic Chemistry. With his team he works in the field of photosynthesis and artificial photosynthesis. The molecular basis for photosynthesis is formed by protein complexes and organelles that contain chlorophyll molecules. The antenna systems herein capture…

This project aims to situate the current policy concept of ‘valorization of scientific knowledge’ in historical and epistemological perspectives. Conceptual understanding of the utility of scientific practices is developed in dialogue with historical analyses of the politics of knowledge in European…

In this thesis, classes of strongly interacting quantum field theories, have been studied.

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

Criminology and Security Policy is a challenging Dutch-taught master's programme at the renowned Leiden Law School of Leiden University. This programme – with its multidisciplinary perspective - focuses on the security issues in society and the development of effective and legitimate policy in order…

Social and Behavioural Sciences, Political Science

Great apes and the right to health

Development of scenarios for 2050 detailed in an IO framework

The development of new environmentally sound technologies is seen as a key route towards achieving sustainability.

Development of indicators to assess decoupling of economic development and environmental pressure in the EU-25 and AC-3 countries.

Think tanks have proliferated in most Western democracies over the past three decades and are often considered to be increasingly important actors in public policy. Still, their precise contribution to public policy remains contested.

An international comparative study of the Netherlands, Belgium, Denmark, France, Germany, the United Kingdom and the United States.

European countries struggling how to deal with the issue of returning foreign fighters, women and children from the Caliphate.

How is Indian foreign policy made? This special issue of the journal India Review, edited by political scientists Nicolas Blarel (Leiden University) and Avinash Paliwal (SOAS University of London) features a number of interesting case studies that bridge the gap between Foreign Policy Analysis and India’s…

Climate change and energy transition were an important theme of the Dutch provincial elections: how should we invest in new sources of energy? Leiden University conducts multidisciplinary research into renewable energy solutions. Read more about this in the ‘Renewable Energy’ research dossier.

Yuxi Nie defended her thesis on 15 October 2019.

Has the industrial sector in China effectively been decarbonizing in recent years, across different regions and subsectors, and is it plausible that it will reduce its CO2 emissions in conformity with national and internationally pledged emission goals?

PRINCE (for Policy Relevant Indicators for Consumption and Environment) was a three-year project set up to explore ways to improve and expand the set of indicators used to estimate the environmental impacts linked to Swedish consumption, both within Sweden and abroad. Any new methods and indicators…

Are you eager to conduct policy-oriented research on issues of relevance to organisations? Do you want to combine ethnographic research with a 3-month internship? Do you have excellent analytical, organizational and communication skills? Are you flexible and hard-working? Then Sociology of Policy in…

The emissions of the Chinese industrial sector alone comprise 24.1% of global emissions (7.8 GtCyr−1 in 2015). This makes Chinese industrial emissions of unique national and international relevance in climate policy. This study reports a literature survey that quantitatively describes the evolution…

‘It became very clear that Brazilian legislative policy was frail, obsolete and unreliable,’ says Felipe de Paula. He defended his dissertation on the limits and possibilities of legislative policy in Brazil on Tuesday 27 March 2018.

YAL raises its voice on policy matters.

Researchers from the Institute of Public Administration study the mechanism of lobbying and influencing political parties and the behaviour of these parties to see how solutions are found to problems. This enables them to reach conclusions as to how best to effect changes in political focus and poli…

Diversity and inclusion are core values of Leiden University. Leiden University has committed itself to a policy that aims to become an inclusive community which enables all students and staff to feel valued and respected, and to develop their full potential. The Diversity & Inclusion Expertise Office…

EU foreign policy has become increasingly politicised over the past years, amongst others as a consequence of the succession of crises. Crises may engender processes of crisis framing and contestation. This article focuses on how the policy demands being voiced in these processes of contestation are…

To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. Biomass, hydro and wind, while vital, take up the most space. Natural gas and…

On 6 June 2019, Edward Donelan defended his thesis 'Regulatory Management Policies and a Universal Model for Public Policy Making, Legislative Drafting and Managing Stocks of Legislation'. The doctoral research was supervised by Prof. W.J.M. Voermans.

Ebru Alazi ‘hacked’ an enzyme-producing system in the fungus Aspergillus niger in order to produce renewable energy more easily. She manipulated the fungus, making it produce more pectinases: enzymes mainly used in the food industry and in the production of renewable energy, such as biofuels. Promotion…

The Institute CADS adheres to and teaches an approach to research ethics and integrity that emphasizes the processual nature of informed consent, situational ethics, and the indispensability of continually updating the ethical tradition in international anthropology in all the work of its researchers…

My research project aims to analyze reasons of the European Union’s (EU) inadequacy to develop a strong Common Security and Defense Policy (CSDP) with regard to the role of main EU member states, namely Germany and the United Kingdom (UK) and find the answer of how the EU overcome the CSDP question…

The policies relating to language pursued by European monarchies and states have been widely studied, but far less attention has been given to their linguistic and cultural policies in territories outside their own borders.

How new media shape the communication strategies of the PRC’s official news agency Xinhua?

This research paper was requested by the European Parliament's Committee on Civil Liberties, Justice and Home Affairs. It was published by the International Centre for Counter-Terrorism (ICCT) in The Hague. Leiden University is one of the participating institutes in this publication and our researcher…

The present market regulations make it extremely risky to invest in green energy, and this is impeding the fight against climate change. This is what Oscar Kraan writes in his dissertation. PhD defence on 25 April.

Course, Summer School

Following the terrorist attacks in Paris (November 2015) and Brussels (March 2016), Belgium’s counterterrorism policy has been heavily criticized – domestically and worldwide.

Within the Sociology of Policy in Practice specialisation you will develop a research project on prevailing policy problems.

The E2CB programme has been launched to bring CO2 emissions to zero by 2050. The goal: to produce all raw materials for the chemical industry from sustainable sources. Professor of Electrochemistry Marc Koper is involved in the project.

This dissertation takes an important step in understanding the phenomenon of non-take-up of social support and what it means for contemporary social policies.

This collection of essays details the political life of one of the most prominent and gifted American statesmen of the twentieth century. From his early training in international law to his five terms in the US Senate, J. William Fulbright (1905--1995) had a profound influence on US foreign policy,…

Assistant Professor Vedran Dunjko and his team received a gift from Google to support their quantum research. The research focuses on whether quantum computers can provide new ways of understanding the mysteries of high-energy physics.

Terrorist attacks are not an end in themselves, but a means of creating unrest and fear. Terrorism policies and research should focus more on managing fear and social unrest.