Funding for this research was provided by:
Horizon 2020 Framework Programme (779312)
Received: 2 April 2020
Accepted: 7 July 2020
First Online: 20 July 2020
Ethics approval and consent to participate
: The primary data was collected from country experts via a questionnaire, and follow-up and validation questions either via email or Skype. Ethics approval was required for this. An information sheet and an informed consent form were developed according to the Bocconi ethics guidance. Ethics approval was received by the Bocconi Ethics Committee on May 9th 2018, after which additional modifications were implemented to be in line with the General Data Protection Regulation end of May.
: Not applicable.
: EN is part time employed and AW is contracted on a project base by Dolon Ltd. They do not have any competing interests with this work. MD and KF do not have any conflict of interests to declare.