Innovation and Corporate Growth in the Evolution of the Drug Industry
AbstractThe work studies the processes of growth of the world top 150 pharmaceutical firms, on the grounds of an original database which allows also disaggregate analysis at the level of single therapeutical classes and chemical entities.Our findings show that the industry -whose long-term evolution is driven by innovation , imitation and permanent creation of new markets - displays (i) 'fat tails' in the distribution of growth shocks , present at all levels of aggregation, with (relatively rare) big "spurs of growth";(ii) a significant autocorrelation of growth rates ,(iii) a fall of variance of growth rates with size, entirely dependent on corporate diversification patterns, in turn plausibly shaped by the "competence scope" of each firm, (iv) different "lifecycles" of diverse types of products, (v) persistent forms of heterogeneity across firms in terms of innovative output which however do not seem to affect comparative growth performances.
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Bibliographic InfoPaper provided by Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy in its series LEM Papers Series with number 2001/02.
Date of creation: 13 Dec 2001
Date of revision:
Other versions of this item:
- Bottazzi, Giulio & Dosi, Giovanni & Lippi, Marco & Pammolli, Fabio & Riccaboni, Massimo, 2001. "Innovation and corporate growth in the evolution of the drug industry," International Journal of Industrial Organization, Elsevier, vol. 19(7), pages 1161-1187, July.
- NEP-ALL-2002-05-03 (All new papers)
- NEP-ENT-2002-05-03 (Entrepreneurship)
- NEP-HEA-2002-05-03 (Health Economics)
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