World Development
World Development > 1997 > 25 > 2 > 153-165
World Development > 1997 > 25 > 3 > 311-327
World Development > 1997 > 25 > 11 > 1853-1856
World Development > 1997 > 25 > 11 > 1909-1924
World Development > 1997 > 25 > 2 > 153-165
World Development > 1997 > 25 > 3 > 311-327
World Development > 1997 > 25 > 11 > 1853-1856
World Development > 1997 > 25 > 11 > 1909-1924