Data/hora: 09/06/2024 09:31:43

Provedor de dados: 	Research in Agricultural & Applied Economics (AgEcon Searh)	
País: 	United States	
Título: 	CYCLICAL CONCENTRATION AND BIOTECH R&amp;D ACTIVITY: A NEO-SCHUMPETERIAN MODEL	
Autores: 	Oehmke,   James F.; Wolf,   Christopher A.; Weatherspoon,   Dave D.; Naseem,   Anwar; Maredia,   Mywish K.; Raper,   Kellie Curry; Hightower,   Amie L.	
Data: 	2000-06-13	
Ano: 	1999	
Palavras-chave: 	Research and Development/Tech Change/Emerging Technologies.	
Resumo: 	Several characteristics of biotech industry structure follow cyclical patterns. Mergers and acquisitions activity shows cyclical behavior, with peaks from 1988-92 and 1996-97 and a valley from 1993-95. The ratio of large-firm to small-firm field trials, and the Herfindahl-Hirshmann concentration index, move pro-cyclically with M&amp;A activity. This paper develops a formal, dynamic, neo-Schumpeterian model of endogenous R&amp;D and innovation. The model generalizes and extends the literature on biotech industry concentration.  For specified parameter values, the out-of-steady-state dynamics are examined, and shown to generate model behavior which is consistent with empirical descriptions of biotech concentration and R&amp;D-activity cycles.	
Tipo: 	Working or Discussion Paper	
Idioma: 	Inglês	
Identificador: 	2110

http://purl.umn.edu/11792	
Editor: 	AgEcon Search	
Relação: 	Michigan State University&gt;Department of Agricultural Economics&gt;Staff Paper Series

Staff Paper 99-60	
Formato: 	12

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