Housework and caring - is technology about to transform this essential but overlooked part of the economy? Manuela Saragosa speaks to Ai-Jen Poo, director of the National Domestic Workers Alliance in the US about why workers in the home still aren't valued, and to Megan Stack, author of Woman's Work, about the power employers have over domestic help. Professor Diane Coyle from the University of Cambridge explains why domestic work often isn't included in GDP figures. (Photo credit: Getty Images)