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International audience; Theories of the economic evolution of societies and their diversity arecritically examined, paying particular attention to the evolution of hunter-gatherersocieties. An interdisciplinary approach drawing on anthropology and economicsis adopted. Currently, three main stereotypes of the nature of hunter-gatherersocieties exist. While these indicate that they were diverse, they fail to capturethe full extent of their diversity. It is argued that this diversity increased with thepassage of time and was shaped by the varied local eco-geographic conditions inwhich these societies evolved. This raises the question of whether this developmenthad the same basis as speciation in the biological theory of natural selection. Thisis discussed and then particular attention is given to Adam Smith’s vision of theeconomic evolution of human societies. In conclusion, it is hypothesized that theevolutionary path of modern economies and societies has diverged from that of prehistoricsocieties—they have become less diverse. Modern societies may also havebecome more ultrasocial, a process which accelerated following the commencementof agriculture.

Economics, Ecology and the Environment (Working Papers N°197); It is argued that attributes which have been widely used to typify hunter-gatherer societies are inadequate for several reasons. One is that they fail to capture the full extent of the diversity of these societies. We suggest some additional attributes which should be taken into account in characterizing these societies. Linear (unidirectional) models of the development of prehistoric societies are criticized and multi-linear models are discussed. Currently, three main stereotypes of the nature of hunter-gatherer societies exist. While these indicate that they were diverse, they fail to capture the full extent of their diversity. It is suggested that this diversity increased with the passage of time and was shaped by the varied local eco-geographic conditions (local resource endowments) in which these societies existed. This raises the question of whether this development had the same basis as speciation in the biological theory of natural selection. This is discussed and then particular attention is given to Adam Smith’s vision of the evolution of human societies. In conclusion, it is suggested that the evolutionary path of modern societies has diverged from that of prehistoric societies.