00358nam a22001217a 450000500170000002000150001708200220003210000220005424500570007626000560013330000100018970000370019920260205150425.0  a0801840309  a	338.13091 KRU.N1  a	Krueger, Anne O   aThe political economy of agricultural pricing policy  a	Baltimore: bJohns Hopkins University Press,c1991  a293p.  aSchiff, Maurice; Valdes, Alberto