00842nam0-2200301---450-99000840776040332120061025161000.00-262-20084-8000840776FED01000840776(Aleph)000840776FED0100084077620061025d1991----km-y0itay50------baengUSa---a---001yyOptimal regulationthe economic theory of natural monopolyKenneth E. TrainCambridge, Mass.MIT Pressc1991XIV, 338 p.24 cmBibliografia: p. 329-333Train,Kenneth E.286980ITUNINARICAUNIMARCBK990008407760403321CER/1011168DECTSDECTSOptimal regulation725203UNINA