Charles Mather is a Professor and Head of the School of Geography, Archaeology and Environmental Studies at Witwatersrand University. His research and teaching interests include agri-food restructuring, food economy, rural livelihoods and global commodity chains. His specific focus is citrus exports after deregulation, and during 2001 and 2002 he spent his sabbatical researching aspects of the ‘re-regulation’ of this crop using a global commodity chain framework. He is also interested in domestic commodity chains and transformations in the conditions of farm workers in South Africa. Charles Mather is a member of the Editorial Committee of the journal African Studies.