Political complexity predicts the spread of ethnolinguistic groups

Proceedings of the National Academy of Sciences Vol/Iss. 106(18) National Academy of Sciences Washington, D.C Published In Pages: 7339-7344
By Currie, Thomas E., Mace, Ruth


Political complexity of the society in which a language is spoken will be positively associated with the geographic range of that language (7340).


Subsistence strategy, plant species diversity (SPDV), mean growing season (MGS), latitude, and net primary productivity (NPP) are included as environmental and cultural controls. Although political complexity was the strongest predictor, latitude was significantly positively correlated, and MGS and NPP significantly negatively correlated, with language area.


Test NameSupportSignificanceCoefficientTail
Multiple regressionSupportedp < 0.001UNKNOWNUNKNOWN