Political centralization in pre-colonial Africa
Journal of Comparative Economics • Vol/Iss. 41(1) • Elsevier • • Published In • Pages: 6-21 •
By Osafo-Kwaako, Philip, Robinson, James A.
Hypothesis
Levels of sovereignty will be predicted by population density, frequency of being attacked, and trade in the worldwide sample, but not in the Africa sub-sample.
Note
The authors created an interaction term between an Africa indicator variable and population density, frequency of being attacked, and trade. Trade in the Africa sample had no significance, even though significant in the worldwide sample. Population density and being attacked in Africa resulted in significant relationships, however, trending in the opposite direction (pop density: b= -0.29 to -0.31; p<.05. Being attacked: b = -0.65 to -.079; p < .1) compared with the whole sample (b= 0.38-0.39; p<.01).
| Test Name | Support | Significance | Coefficient | Tail |
|---|---|---|---|---|
| Ordinary least square regression | Supported | UNKNOWN | UNKNOWN | UNKNOWN |
| Variable Name | Variable Type | OCM Term(s) |
|---|---|---|
| Frequency Of Being Attacked | Independent | Warfare |
| Population Density | Independent | Population |
| Trade | Independent | External Trade |
| Africa | Control and Interaction | Location |
| Levels of sovereignty | Dependent | Territorial Hierarchy |