Appendix 3 Semi-structured protocol for interviews and focus groups

For community partners: ● Key questions ○ Buy-in of the social lab model ● How did they get involved in the Market lab? ● What was the purpose of their service units to join Market Lab? ● How did they understand their roles in Market lab? ● Important experiences during the process ● How did they compare the market lab project to other projects they did? ● What are the impacts of the Market Lab they have seen or foresee? ○ Feedback from the kaifongs or users

For lab fellows from government offices ● Key questions ○ Buy-in of the social lab model ○ Impact on themselves ● How did they get involved in the Market Lab? ● What was the original purpose of their departments to join Market Lab? ● How did they understand their roles in Market lab? ● Presenting the survey results, and asking their feedback ○ Any other impacts besides those on the survey? ● Important experience in the Market Lab ● How did they compare their roles to other openly recruited lab fellows? ● Is it feasible for FEHD or PICO to adopt social lab method again? ○ Any benefits? ○ Any obstacle?

For openly recruited lab fellows ● Key questions ○ Impact on themselves ● How did they get involved in the Market lab? ● How did they understand their roles in Market lab? ● Presenting the survey results, and asking their feedback ○ Any other impacts besides those on the survey? ● What were the personal impacts on them?

● Important experience in the Market Lab

For organizers: ● Key questions ○ their understanding of the social lab strategy ○ their perceived role and functions ○ difficulties and concerns ○ their learning trajectory ● For those having experience of previous labs, what are the major changes in Market Lab? ○ Why would these changes occur? ○ How did they feel about the effect of these changes? ● How did they understand their roles and functions in Market lab? ○ Did they have any adjustment on roles and functions during Market Lab? How did it happen? ● Presenting the survey results, and asking their feedback ○ As an organizer, how did they understand the patterns on the survey? Any related experience? ● What were the difficulties they experienced in playing out their role? ● What were the support received or expected in tackling their difficulties? ● Any abilities or knowledge needed for performing their roles? How did they acquire these abilities?