found: Ruggedness, the blessing of bad geography in Africa, 2007:t.p. (Nathan Nunn; University of British Columbia)
found: Aiding conflict, 2012:t.p. (Nathan Nunn, Harvard University, NBER and BREAD) verso (Nathan Nunn, Department of Economics, Harvard University, Cambridge, MA)
found: Harvard University web site, 10 Dec. 2012(Nathan Nunn, Professor, born in Canada; primary research interests are in economic history, political economy and international trade; NBER Faculty Research Fellow, affiliate of BREAD; one stream of interest focuses on historic events and African slave trade)
found: Africa's development in historical perspective, 2014:ECIP t.p. (Nathan Nunn) ECIP data view (born July 9, 1974)