00868nam0-22002891i-450-990003870880403321000387088FED01000387088(Aleph)000387088FED0100038708819960715d--------km-y0itay50------baitaITParticipation in Heterogeneous CommunitiesAlberto Alesina and Eliana La FerraraWorking Paper SeriesInnocenzo Gasparini Institute for Economic Research99.151Gruppi sociali12400Alesina,Alberto<1957- >120423La Ferrara,Eliana126376ITUNINARICAUNIMARCBK990003870880403321PaperSESSESParticipation in Heterogeneous Communities514238UNINAING01