search query: @indexterm Diffusion / total: 191
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| Author: | Berndt, E.R. Pindyck, R.S. Azoulay, P. |
| Title: | Consumption externalities and diffusion in pharmaceutical markets: antiulcer drugs |
| Journal: | Journal of Industrial Economics
2003 : JUN, VOL. 51:2, p. 243-270 |
| Index terms: | Consumption Diffusion Externalities Pharmaceutical industry |
| Language: | eng |
| Abstract: | The role of consumption externalities is examined in the demand for pharmaceuticals at both the brand level and over a therapeutic class of drugs. Externalities emerge when use of a drug by others affects its value, and/or conveys information about efficacy and safety to patients and physicians. This can affect the rate of market diffusion for a new entrant, and can lead to dominance of one drug despite the availability of close subsitutes. Data for H2-antagonist antiulcer drugs is used to estimate a dynamic demand model and quantify these effects. |
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