Final answer:
A key concept of preparing a participatory budget is community engagement and citizen participation, involving education, relationship-building, and equitable representation. Ensuring buy-in from stakeholders is also important. Being flexible, utilizing community strengths, and thinking outside the box are additional key aspects.
Step-by-step explanation:
A key concept of preparing a participatory budget is community engagement and citizen participation. This involves building relationships with the community through smaller events, educating them on the issue, and researching different ways to host meetings. It is important to have equitable representation of the community and involve artists who enjoy working with the community. Another important concept is ensuring buy-in from researchers, community stakeholders, and survivors by eliciting feedback and involving them in the project design and decision-making process. Remaining flexible and open to new ideas, utilizing the strengths of the community, and thinking outside the box are also key aspects of preparing a participatory budget.