Static characters do not undergo important changes over the course of a story, remaining the same from beginning to end. Dynamic characters do change, often as a result of external conflicts, with changes in insights, understanding, values or commitments. The example given is that Prim from The Hunger Games is a static character who does not change, while Haymitch is dynamic as he sobers up and commits to helping the tributes over the course of the novel. Dynamic characters tend to be more fully developed and central to the story.