This thesis investigates how the assessment of circular economy (CE) at the macro-economic level can be facilitated and promoted⁠.

Our Mission: To optimize human well-being within the constraints of planetary boundaries through innovative research, education, and partnerships that advance sustainable production and consumption. We strive to remain global leaders in developing and applying systems-based approaches, methodological…

The research programme Industrial Ecology aims to support the ecological transformation of society and environment towards sustainability. The research subject is Industrial Ecology in its broadest definition, covering environmental systems analysis, and incorporating the social and economic aspects…

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…

How might we include circularity into the models often used in IPCC reporting (in technical language, how can IAMs, dMFA models and CGE models be integrated?) What are possible futures for global resource use and what are the consequences for greenhouse gas emissions in these scenarios?

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…

Do you deeply care about our planet and are you eager to make a real change? Then our two-year MSc programme Industrial Ecology may be the place for you. The interdisciplinary programme, offered jointly by Leiden University and TU Delft, is a true powerhouse for sustainability solutions. As a student…

Are you thinking about studying Industrial Ecology? Learn more and watch the introduction video.

In-use stocks of products can be considered as intermediaries between human needs and the physical world.

The master's programme Industrial Ecology (joint degree Leiden University and Delft University of Technology) is unique in the Netherlands and one of the few programmes in the world combining natural science, engineering, and social science for science-based solutions for sustainability problems.

This programme video is presented in Dutch

The specialisation Global Political Economy of the master’s in International Relations at Leiden University provides you with a cutting-edge understanding of the world economy and its social and political foundations.

How do humans, non-humans and their interactions and relations shape the home as ecological and social space?

Circular economy… is it another a buzz word or a concept worth learning more about?

Op zoek naar een bacheloropleiding economie met een sterke focus op publiek beleid? Bij de bacheloropleiding Economie & Samenleving leer je in tegenstelling tot traditionele economieopleidingen om slim en strategisch te navigeren binnen de huidige complexe, juridische en politieke context.

How the systematic destruction of valuables created value in Bronze Age Europe, c. 2300-500 BC

Many of the most acute problems we face today are global: they transcend national boundaries, they put the future of society and even humanity at peril, and they can only be addressed through international cooperation.

Are you thinking about studying Global Political Economy? Learn more and watch the introduction video.

The emergence of metalwork deposition during the Bronze Age in Northwest Europe, c. 2300-1500 BC

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)

This volume presents fourteen papers by Roman archaeologists and historians discussing approaches to the economic history of Pompeii, and the role of the Pompeian evidence in debates about the Roman economy.

This presentation is presented in Dutch

Promotor: Prof. dr. Arnold Tukker & Prof. dr. René Kemp (Maastricht University)

The Brazilian economy has long been defined by its enormous potential. Over the past 30 years, some of this has at last been realised. Latin America’s largest economy has rapidly risen in global importance while poverty at home has declined. Yet, despite periods of progress, Brazil remains prone to…

Are you thinking about studying Philosophical Perspectives on Politics and the Economy? Learn more and watch the introduction video.

Porosity between Politics and the Economy addresses the relationships between politics and the economy in deeply original ways. It is a book motivated by a sense of urgency aroused by both the failure of modern capitalism and the environmental crisis.

Discover the new MSc in Public Sector Economics at Leiden University, offered entirely in Dutch. This program prepares future policy economists by bridging economic theory, Dutch institutions, and real-world policy challenges. Starting September 2025 in The Hague, it focuses on key issues like inequality,…

Institute of Environmental Sciences, Faculty of Science, Leiden University

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

The aim of this thesis was to develop and evaluate a Ecological Professional Development Model to support preservice biology teachers to direct their own subject-specific ecological professional development route.

Material culture and the role of rural communities in exchange systems of the eighth and ninth centuries

How can we let the sonic speak in public urban environments? What is the function and position of sound in our daily encounters with urbanity? How do we experience cities aurally? This was the topic of Marcel Cobussen's inaugural lecture on November 28th, 2016.

Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.

Are you interested in an economics programme that takes a multidisciplinary approach? The bachelor’s degree Economics and Society combines economics with political science and law, allowing you to understand the most pressing economic and societal challenges from various perspectives.

Uncover novel antimicrobials with prospective health benefits for sea turtles.

What is the size and composition of the Dutch urban mine? How will the urban mine develop over time, and how can it be used as a source of materials as part of a circular economy?

On 7 February 2019, Helena Ursic-Vrabec defended her thesis 'Uncontrollable: Data subject rights and the data- driven economy'. The doctoral research was supervised by Prof. dr. S. van der Hof.

Promotor: E. Gittenberger, Co-promotores: L.P. van Ofwegen; B.W. Hoeksema

How have human-environmental entanglements changed in the Gulf of San Miguel, Darien, Panama, from the first traces human practices through to the present?

On 8 April 2022, researchers of the seed grant project on 'How to Finance Climate Change Policies' presented their work to the Leiden Political Economy Group (L-PEG) and GTGC's Economy and Ecology thematic areas during a research seminar. The title of the presentation was 'How to Finance Green Investments?…

Irna Hofman defended her thesis on 10 January 2019.

Corporate R&D organizations and their relation to academic laboratories.

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon

The expanding population and economic activity are driving up global energy consumption. Simultaneously, there is an urgent need to transition from fossil fuels to renewable sources to mitigate the climate crisis, primarily caused by fossil fuel combustion.