My chapter is entitled: "The Characterization of the Two Brothers in the Parable of the Prodigal Son (Luke 15:11-32): Their Function and Afterlives." It builds on the foundation of work on characterization in Luke-Acts that I did in the late 1980s, especially the conclusions reached in my 1991 book, Host, Guest, Enemy, and Friend: Portraits of the Pharisees in Luke and Acts. The chapter will start there but go on to examine some receptions of the two sons that depend/build upon their characterization in Luke.
The afterlives of the two sons are especially interesting. A poem by James Weldon Johnson, for example, illustrates how people tend to identify or be identified as one of those two sons.