Narrow search
Showing 1 - 5 of 5
Cover Image
The knowledge production of "R and "D"
Czarnitzki, Dirk; Kraft, Kornelius; Thorwarth, Susanne - In: Economics letters 105 (2009) 1, pp. 141-143
Persistent link: https://www.econbiz.de/10003899412
Cover Image
The heterogeneous effect of software patents on expected returns : evidence from India
Eberhardt, Markus; Fafchamps, Marcel; Helmers, Christian; … - In: Economics letters 145 (2016), pp. 73-78
Persistent link: https://www.econbiz.de/10011618215
Cover Image
New evidence on determinants of intellectual property litigation : a market-based approach
Czarnitzki, Dirk; Criekingen, Kristof van - In: International journal of the economics of business 26 (2019) 1, pp. 93-115
Persistent link: https://www.econbiz.de/10012182254
Cover Image
Protecting innovation through patents and trade secrets : evidence for firms with a single innovation
Crass, Dirk; Garcia-Valero, Francisco; Pitton, Francesco; … - In: International journal of the economics of business 26 (2019) 1, pp. 117-156
Persistent link: https://www.econbiz.de/10012182255
Cover Image
Innovation indicators and corporate credit ratings : evidence from German firms
Czarnitzki, Dirk; Kraft, Kornelius - In: Economics letters 82 (2004) 3, pp. 377-384
Persistent link: https://www.econbiz.de/10001938468