00401pab a2200121 454500008003600000100001700036245010800053362003000161650002100191650002000212700001600232773003100248180718b   xxu||||| |||| 00| 0 eng d  aYang Xiaokai  aAn equilibrium model endogenizing the emergence of a dual structure between the urban and rural sectors  a35(3), May 1994, p.346-68  a Land Use, Urban  aUrban Economics  aRice Robert  aJournal of Urban Economics