- University of Groningen
- De Nederlandsche Bank
- CESifo GmbH
- SOM
External person
- Rijksuniversiteit Groningen
External person
- Paris Lodron University of Salzburg
- University of Salzburg
- Sciences Po
External person
- University of Twente
- University of Groningen
External person
- Vrije Universiteit Amsterdam
External person
- Stichting HIV Monitoring
- University of Amsterdam
External person
- Dutch Ministry of Economic Affairs
External person