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Q&A: Big data and development

Emmanuel Letouzé, a PhD candidate at the University of California at Berkeley, United States, spoke at the Data and Accountability for the Post-2015 Development Framework conference hosted by the UN Development Programme in New York last month. He uses the term ‘digital breadcrumbs’ to refer to big data, saying that it has nothing to do with the size or volume of data and everything to do with technological advances in mobile telephony