Research & Publications


1) Natural resources in armed conflicts (“conflict resources”)

The first main research area of Martijn’s work is related to the role of natural resources as a source of funding in armed conflicts. In numerous civil wars, “conflict resources” help the belligerent parties to finance their war efforts (e.g. in the case of “blood diamonds” or minerals from the eastern Congo). In his recent research project GLONEXACO, Martijn looked to what extent the local dynamics of such armed conflicts can be influenced by global economic changes (e.g. prize shocks, sanctions etc.). At Yale, Martijn was an affiliated member of the research group “The Program on Order, Conflict and Violence”, led by Professor Stathis Kalyvas.

2) European Union Foreign Policy

Martijn’s second main research field is the EU’s Foreign Policy. In his work, he is studying the conflict prevention and crisis management policies of the EU with a specific emphasis on its activities with regard to natural resources. Martijn participates in the project EU-NORMCOM (Normative contestation in Europe: Implications for the EU in a changing global order) and is member of the research group “Observatory of European Foreign Policy” (both headed by Professor Esther Barbé).

3) The influence of the EU on support for secessionism in EU Member States 

As a side project, Martijn studies, together with Diego Muro and Guillem Vidal, in the project EU-SCAT the impact of international factors on support for secession in Catalonia and Scotland. Both regions have strong pro-independence movements and the project studies to what extent the voters change their attitudes regarding secession, when confronted with different international scenarios. To this aim, a survey experiment with over 2,400 participants has been conducted in Catalonia and Scotland.






Accepted Book Proposal

  • “Violencia Política” (Political Violence), (co-edited with Lesley-Ann Daniels), Madrid: Tecnos.

 Under Review

  •  “Does the Prospect of International Recognition Influence Support for Secession? A Survey Experiment in Catalonia and Scotland” (with Diego Muro and Guillem Vidal, Nations and Nationalism).

In Preparation

  • “Does Cutting Off Armed Groups’ Funding Make A Conflict More Violent? The Case Of ‘Conflict Minerals’ From The Democratic Republic Of The Congo”
  • “How Well Are Internal Migrants Represented in Political Institutions? The Case of Spanish Migration to Catalonia”
  • “Explaining violence in contested areas: From territorial control to shifts in territorial control” (with Juan Masullo).
  • “Transparency Requirements as a Threat to Multilateral Structures? The Foreign Accountability Norm and the Changing Nature of Global Resource Governance”.
  • “No Silver Bullet Solution: What Dilemmas Face Policymakers When Creating Measures Against Natural Resources That Fund Armed Conflicts?”
  • “The Design of the Spanish Constitution as Simulation for a Comparative Studies Course” (with Lesley-Ann Daniels and Diego Muro)
  • “How many “conflict resources” enter the western markets?” An input-output analysis (with Paul Wolfram)
  • Book project: “European Union Contested: Foreign and Security Policy in a Changing World” (with Esther Barbé and Elisabeth Johansson-Nogués)