Network effects and diffusion in pharmaceutical markets : antiulcer drugs
Network effects and diffusion in pharmaceutical markets : antiulcer drugs - Cambridge, Mass : National Bureau of Economic Research, 1999 - 31
ANTIULCER DRUGS--UNITED STATES--MARKETING
ANTIULCER DRUGS--PRICES--UNITED STATES
MARKET SHARE--UNITED STATES
PHARMACEUTICAL INDUSTRY--TECHNOLOGICAL INNOVATIONS--UNITED S
HD9665.5 / B476N