World Development
World Development > 1998 > 26 > 6 > 933-944
World Development > 1998 > 26 > 12 > 2105-2118
World Development > 1999 > 27 > 12 > 2061-2079
World Development > 2004 > 32 > 8 > 1309-1321
World Development > 2007 > 35 > 5 > 735-751
World Development > 2014 > 56 > Complete > 62-76
World Development > 2017 > 99 > C > 95-109
World Development > 2018 > 111 > C > 246-255