I am not sure that the “Why” was discussed enough at this global conference. The discussions in the sessions I sat in were dominated by people trying to clarify what bullying and harassment are and what variations nor subcultures there are, or what sections of the community are most affected by workplace bullying and harassment. And I am not sure that all the presenters were targeting the workplace, even though the association and conference titles specify this.
The Conference That Examined Workplace Bullying but Not Why It Happens (Not Yet)