While the overwhelming majority of the labour force in developed and transitional economies is found in waged and salaried employment, the labour force in developing countries is distributed between waged and salaried employment and various types of self-employment. Women and men within these households engage in a diversity of activities, often migrating in search of new opportunities. While these activities are generally labour-intensive in nature, they do not fit neatly into conventional economic models of labour markets focused on waged labour.