Write a wiki-style article that clearly identifies the concept and then briefly explains why it is important, and potentially how it has been employed as a tool for behavioral change.

Do a bit of digging around in the academic literature to see who the central scholars are on the concept of social reciprocity and identify the core articles. Write a wiki-style article that clearly identifies the concept and then briefly explains why it is important, and potentially how it has been employed as a tool for behavioral change.