May I know the latest Moderation and Mediation analysis techniques? What were the problems with Baron & Kenny? How Andrew Hayes's Process Macro is favored?
I've found Kraemer et al.'s discussion very informative:
Kraemer, H. C., Kiernan, M., Essex, M., & Kupfer, D. J. (2008). How and why criteria defining moderators and mediators differ between the Baron & Kenny and MacArthur approaches. Health Psychology, 27(2, Suppl), S101-S108. doi:10.1037/0278-6133.27.2(Suppl.).S101