00797nam0-22002891i-450-990003150740403321000315074FED01000315074(Aleph)000315074FED0100031507420000920d--------km-y0itay50------baitaITOwnership Versus EnvironmentWhy Are Public Sector Firms Inefficient?Ann P. Bartel, Ann E. HarrisonWorking paper seriesNBER7043Imprese pubblicheN/3Bartel,Ann P.Harrison,Ann E.ITUNINARICAUNIMARCBK990003150740403321PaperSESSESOwnership Versus Environment456301UNINAING01