1. a UNU‐WIDER , Katajanokanlaituri 6B, FIN‐00160 Helsinki , Finland
2. b Institute of Social Studies (ISS), PO Box 29776, 2502 LT The Hague, The Netherlands; The Birmingham Business School, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK, Centre for the Study of Civil War (CSCW), PRIO , Oslo , Norway