The Social Origins of Electoral Volatility in Africa

This article utilizes the statistical analysis of an original dataset of African legislative seat volatility levels and three case studies to demonstrate that the size and configuration of politically salient ethnic groups bear a strong relationship with patterns of legislative seat volatility in Africa. Legislative seat volatility is highest in countries where either no social group is large enough to form a majority on its own, or a majority group contains within itself a second smaller majority group; it is lowest in countries where one, and only one, group forms a majority. In contrast, most standard explanations for volatility, including variations in economic performance, democratic period of origin and democratic duration, do not appear relevant in the African context.