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Do Computers Call for Training? Firm-level Evidence on Complementarities Between ICT and Human Capital Investments
Hempell, Thomas - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2003
This paper explores whether investments in information and communication technologies (ICT) and firm?sponsored training programmes are complementary. Three approaches are applied to panel data from German service companies for the time period 1994?98. Results for a system of interrelated factor...
Persistent link: https://www.econbiz.de/10005097535
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Spillovers in networks of user generated content: Pseudo-experimental evidence on Wikipedia
Kummer, Michael - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2014
I quantify spillovers of attention in a network of content pages, which is challenging, because such networks form endogenously. I exploit exogenous variation in the article network of German Wikipedia to circumvent this problem. Wikipedia prominently advertises one featured article on its main...
Persistent link: https://www.econbiz.de/10011139789
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Spillovers in networks of user generated content: Evidence from 23 natural experiments on Wikipedia
Kummer, Michael E. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2013
Endogeneity in network formation hinders the identification of the role social networks play in generating spillovers, peer effects and other externalities. This paper tackles this problem and investigates how the link network between articles on the German Wikipedia influences the attention and...
Persistent link: https://www.econbiz.de/10010957727
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Open Source, ICT infrastructure and firm performance
Cerquera Dussán, Daniel; Müller, Bettina - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2009
This paper empirically studies the impact of the adoption of open source software (OSS) on firms' labor productivity and innovative behavior. Using a representative sample of German firms, the results show that the adoption of OSS operating systems for servers and general OSS applications has no...
Persistent link: https://www.econbiz.de/10008615600
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Intermediate input markets, ICT and innovation in Germany: A firm level analysis
Cerquera, Daniel; Klein, Gordon J. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2013
the importance of adoption externalities and knowledge spillovers inherent in the introduction of ICT. The results show …
Persistent link: https://www.econbiz.de/10010957582
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ICT, Innovation and Business Performance in Services: Evidence for Germany and the Netherlands
van der Wiel, Henry; van Leeuwen, George; Hempell, Thomas - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2004
deepening and innovation for productivity. We employ a model that takes into account that innovation and ICT use may be … technological innovations on a more permanent basis. Moreover, the joint impact of ICT use and permanent technological innovation on … productivity appears to be of the same order of magnitude in the two countries. However, the direct impacts of innovation on multi …
Persistent link: https://www.econbiz.de/10005097585
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Does Experience Matter? Innovations and the Productivity of ICT in German Services
Hempell, Thomas - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2002
In this paper, it is argued that ICT investment is closely linked with complementary innovations and most productive in firms with innovative experience. In an analysis based on firm?level panel data covering the period 1994?99, system GMM estimates for an extended production function framework...
Persistent link: https://www.econbiz.de/10005097592
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Do R&D subsidies matter? Evidence for the German service sector
Czarnitzki, Dirk; Fier, Andreas - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2001
innovative activities of German service firms. We investigate whether firms that receive public subsidies for innovation projects … innovative activities. The more grants a firm has received in the past, the more it invests in current innovation projects …
Persistent link: https://www.econbiz.de/10005097741
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Die Wirkungsanalyse staatlicher Förderprogramme durch den Einsatz von Matching- und Selektionsmodellen am Beispiel der Fertigungstechnik
Fier, Andreas; Heger, Diana; Hussinger, Katrin - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2005
Mit dem Ziel die technologische Wettbewerbsfähigkeit zu steigern, investieren die Staaten der OECD jährlich beträchtliche Summen in die Förderung von Forschungs- und Entwicklungsaktivitäten (FuE). Angesichts knapper öffentlicher Budgets ist der Effektivität und Effizienz dieser Förderung...
Persistent link: https://www.econbiz.de/10005097811
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R&D and Subsidies at the Firm Level: An Application of Parametric and Semi-Parametric Two-Step Selection Models
Hussinger, Katrin - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2003
This paper analyzes the effects of public R&D subsidies on R&D expenditure in the German manufacturing sector. The focus is on the question whether public R&D funding stimulates or crowds out private investment. Cross sectional data at the firm level is used. By apllying parametric and...
Persistent link: https://www.econbiz.de/10005097924