00957nam0-22003131i-450099000180526040332120170206171522.0000180526FED01000180526(Aleph)000180526FED0100018052620030910d1997----km-y0itay50------baitaGeneralized option value and environmental decisionsMarcello Basili.SienaUniversita degli Studi199710 p.24 cmQuaderni del Dipartimento di economia politicaUniversità degli studi di Siena212Economia politica330.1Basili,Marcello79296ITUNINARICAUNIMARCBK990001805260403321PaperSES60 330.1 B 54/2126241FAGBCSESFAGBCGeneralized option value and environmental decisions410039UNINA