World Development
World Development > 2011 > 39 > 1 > 123-133
World Development > 2011 > 39 > 5 > 797-807
World Development > 2011 > 39 > 5 > 700-711
World Development > 2011 > 39 > 7 > 1177-1190
World Development > 2011 > 39 > 7 > 1213-1225
World Development > 2011 > 39 > 8 > 1322-1332
World Development > 2011 > 39 > 10 > 1847-1861
World Development > 2011 > 39 > 12 > 2199-2210