|1. Establishment of advisory group and development of methodological approach||To guide the methodological approach||Members from the advisory group discussed methodology and criteria for prioritisation via Skype and email.||
Three 60–90 min Skype discussions (October 2016–February 2017);|
30-min face-to-face meeting during consultation on cash (4 November 2016); email feedback (October 2016–June 2017).
2. Consultation on research questions|
(a) Online survey
(b) Face-to-face group session
|To identify key research questions on this topic||
(a) Sample of global stakeholders was invited to complete the survey.|
(b) Attendees of a consultation session on cash were asked to list research questions.
(a) 10-min survey was open for 3 weeks (28 March to 19 April 2017)|
(b) 1 h face-to-face session on 4 November 2016
|3. Clarification and prioritisation of research questions and categories||To refine and rank research questions and categories||Members of the advisory group were asked to prioritise research questions based on four criteria. Content analysis was used to develop and rank research categories.||About 1.5 h during 1 month (11 May to 11 June 2017)|
|4. Triangulation of findings with past evidence reviews||To check whether identified categories (a) have not yet been addressed by primary research and (b) whether existing literature reviews recommend research on similar or differing topics.||Published and unpublished literature reviews were identified (through recommendations by authors, searching the CALP library, and checking reference lists of selected papers) and discussed in relation to identified research categories.||October–November 2017|