00370nam a2200133Ia 4500020001500000082002100015100001500036245003400051260003400085300002800119490007900147500000500226700000500231  a3540097449  a338.512bF222.LD  aFare, Rolf  aLaws of diminishing returnsb  aBerlinbSpringer-Verlagc1980  aviii, 97p. Index, Bibl.  aLecture notes in Economics and Mathematical Systems - Economic theory, 176  a  a