LEADER 00878nam0-22002891i-450- 001 990003141100403321 035 $a000314110 035 $aFED01000314110 035 $a(Aleph)000314110FED01 035 $a000314110 100 $a20000920d--------km-y0itay50------ba 101 0 $aita 102 $aIT 200 1 $aNetwork Effects and Diffusion in Pharmaceutical Markets$eAntiulcer Drugs$fErnst R. Berndt, Robert S. Pindyck, Pierre Azoulay 225 1 $aWorking paper series$fNBER$v7024 676 $aH/2.227 702 1$aAzoulay,$bPierre 702 1$aBerndt,$bErnst Rudolph$f<1946- > 702 1$aPindyck,$bRobert S.$f<1945- > 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990003141100403321 952 $aPaper$fSES 959 $aSES 996 $aNetwork Effects and Diffusion in Pharmaceutical Markets$9455714 997 $aUNINA DB $aING01