Testing the bargaining vs. inclusive fitness models of suicidal behavior against the ethnographic record

Evolution and Human Behavior • Published In • Pages: 1-14 •
By Syme, Kristen L., Garfield, Zachary H., Hagen, Edward H.

Hypothesis

Suicidal behavior is a gambit to alter others' behavior by threatening the loss of a valuable member of the community (thereby depriving them of the victim's contributions).

Note

Represents the premise of the bargaining model. Variables combined to test model.

Test

Test NameSupportSignificanceCoefficientTail
Logistic regression; non-negative matrix factorizationSupportedUNKNOWNUNKNOWNUNKNOWN

Variables

Variable NameVariable Type OCM Term(s)
Angry Suicidal BehaviorUNKNOWNSuicide
Conflict (significant Disagreements With Social Partners)UNKNOWNSuicide
Evidence Against Fitness ThreatUNKNOWNSuicide
Fitness Threat (loss Of Mate, Social Status, Resources)UNKNOWNSuicide
High Reproductive PotentialUNKNOWNSuicide
Low Lethality (method Of Suicide Is Not Highly Lethal)UNKNOWNSuicide
Motive: Harm Others.UNKNOWNSuicide
Motive: Kin "better Off"UNKNOWNSuicide
Motive: Leverage (seeks Influence On Others' Behavior)UNKNOWNSuicide
No Social Partner FitnessUNKNOWNSuicide
Outcome: Others Harmed (prolonged Grief)UNKNOWNSuicide
Outcome: Victim "better Off" (some Tangible Benefit Linked To Non-lethal Suicidal Behavior)UNKNOWNSuicide
Outcome: Victim Worse OffUNKNOWNSuicide
PowerlessnessUNKNOWNSuicide
Private Suicidal BehaviorUNKNOWNSuicide
Public Suicidal BehaviorUNKNOWNSuicide
Social Partner FitnessUNKNOWNSuicide