Please answer the following, attach sources for the answer

-List 4 global health organizations, as well as their role and any limitations they may have.

-Why do you think is it important for health policymakers to be familiar with basic economic concepts? Please give an example of your rationale.

- List the characteristics of the 3 market structures that are most useful to understanding healthcare markets: perfectly competitive markets, monopolistic markets, and monopolistically competitive markets

- Define policy analysis, and list and explain the purposes for developing one.

-List and explain the essential elements found in a policy analysis.