Ecology, trade, and states in pre-colonial Africa

Ecological diversity promotes state centralization.

Test
Test Name	Support	Significance	Coefficient	Tail
Regressions estimated by ordered probit	Supported	`UNKNOWN`	`UNKNOWN`	`UNKNOWN`

Variables
Variable Name	Variable Type	OCM Term(s)
Environment	`UNKNOWN`	Location, Climate, Fauna, Flora
State Centralization	`UNKNOWN`	Territorial Hierarchy

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Zinkina, Julia	2016	Political centralization will be negatively associated with plunder as an aim of warfare	Not supported	2	Cite Related Hypotheses More By Author
Hendrix, Lewellyn	1996	Sanctions regarding illegitimacy are positively associated with political centralization (79).	Partially Supported	4	Cite Related Hypotheses More By Author
Zinkina, Julia	2016	Political centralization will be positively associated with the subjugation of territory or people as an aim of warfare (191)	Supported	2	Cite Related Hypotheses More By Author
Zinkina, Julia	2016	Political centralization will be positively associated with the subjugation of land - fields, hunting/fishing territories, or pastures - as an aim of warfare	Supported	2	Cite Related Hypotheses More By Author
Naroll, Raoul	1974	"Our findings suggest that centralized states or those led by experienced rulers tend to do well in the game of power politics [i.e., gain territory], while hereditary monarchies tend to do less well, as do states divided by civil war" (340)	Not Supported	7	Cite Related Hypotheses More By Author