Narrow search
Showing 1 - 10 of 653,525
Cover Image
An empirical test of the asymmetric models on innovative activity : who invests more into R&D - the incumbent or the challenger?
Czarnitzki, Dirk; Kraft, Kornelius - 2000
challenger invests more into R&D in order to enter a new market than the incumbent. Thus, the patent racing model by Reinganum …
Persistent link: https://www.econbiz.de/10011444512
Cover Image
An empirical test of the asymmetric models on innovative activity : who invests more into R&D, the incumbent or the challenger?
Czarnitzki, Dirk; Kraft, Kornelius - In: Journal of economic behavior & organization : JEBO 54 (2004) 2, pp. 153-173
Persistent link: https://www.econbiz.de/10002073150
Cover Image
Flexible parametric models for long-tailed patent count distributions
Guo, Jie Q.; Trivedi, Pravin - In: Oxford bulletin of economics and statistics 64 (2002) 1, pp. 63-82
Persistent link: https://www.econbiz.de/10001659536
Cover Image
Constructuring instruments for regressions with measurement error when no additional data are available, with an application to patents and R&D
Lewbel, Arthur - In: Econometrica : journal of the Econometric Society, an … 65 (1997) 5, pp. 1201-1213
Persistent link: https://www.econbiz.de/10001225111
Cover Image
Research and development, competition and innovation : pseudo-maximum likelihood and simulated maximum likelihood methods applied to count data models with heterogeneity
Crépon, Bruno - In: Journal of econometrics 79 (1997) 2, pp. 355-378
Persistent link: https://www.econbiz.de/10001335918
Cover Image
Flexible Parametric Models for Long-Tailed Patent Count Distributions
Trivedi, Pravin K.; Guo, Jie Qun - 2015
and development expenditure. Patent counts typically exhibit long upper tails that are inadequately mod-eled by standard … with two exible parametric approaches in analyzing two patent data sets …
Persistent link: https://www.econbiz.de/10014119315
Cover Image
An empirical test of the asymmetric models on innovative activity : who invests more into R&D - the incumbent or the challenger?
Czarnitzki, Dirk - 2000
challenger invests more into R&D in order to enter a new market than the incumbent. Thus, the patent racing model by Reinganum …
Persistent link: https://www.econbiz.de/10013428313
Cover Image
Induced innovation and spillover effects of US and Canadian research expenditures in Canadian agriculture
Tian, Qingsong; Cechura, Lukas; Clark, J. Stephen; Yu, Yan - In: Canadian journal of agricultural economics : CJAE 71 (2023) 2, pp. 153-169
Persistent link: https://www.econbiz.de/10014310674
Cover Image
The knowledge-based economy, convergence and economic growth: evidence from the European Union
Karagiannis, Stelios - 2007
Persistent link: https://www.econbiz.de/10003472056
Cover Image
Estimation of R&D depreciation rates : a suggested methodology and preliminary application
Huang, Ning; Diewert, Walter E. - 2009
Persistent link: https://www.econbiz.de/10003925300