| Résumé: | The authors discuss the role of the demographic regime, and particularly its changes, in agrarian transformations. The hypothesis that guides this research, the results of which are presented in the article, is that the factor of demographic structure explains the workings and reproduction of several social formations. The authors are specially interested in rethinking the debate over the role of innovation in the relation between population and production changes.Although they claim that the agrarian transformations that ocurr in the studied regions are a result of demographic changes, the authors emphasize that these transformations are also influenced by their wider social context, wherefore their relations with market economy, urban society and wage work must be considered to explain more comprehensively the mutual influences between the demographic, technological and socioeconomic spheres.
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