TY  - BOOK
AU  - Berndt,Ernst R.
AU  - Pindyck,Robert Stephen
AU  - Azoulay,Pierre
TI  - Network effects and diffusion in pharmaceutical markets : antiulcer drugs
AV  - HD9665.5 B476N
PY  - 1999///
CY  - Cambridge, Mass
PB  - National Bureau of Economic Research
KW  - ANTIULCER DRUGS
KW  - UNITED STATES
KW  - MARKETING
KW  - PRICES
KW  - MARKET SHARE
KW  - PHARMACEUTICAL INDUSTRY
KW  - TECHNOLOGICAL INNOVATIONS
KW  - UNITED S
ER  -