The Identification of Regional Industrial Clusters Using Qualitative Input-Output Analysis
Mirko Titze, Matthias Brachert, Alexander Kubis
IWH-Diskussionspapiere,
Nr. 13,
2008
Abstract
The ‘cluster theory’ has become one of the main concepts promoting regional competitiveness, innovation, and growth. As most studies focus on measures of concentration of one industrial branch in order to identify regional clusters, the appropriate analysis of specific vertical relations within a value-adding chain is developing in this discussion. This paper tries to identify interrelated sectors via national input-output tables with the help of Minimal Flow Analysis by Schnabl (1994). The regionalization of these national industry templates is carried out with the allocation of branch-specific production values on regional employment. As a result, the paper shows concentrations of vertical clusters in only 27 of 439 German NUTS-3 regions.
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Alterung und technologisches Innovationspotential : Eine Linked-Employer-Employee-Analyse
Lutz Schneider
IWH-Diskussionspapiere,
Nr. 2,
2007
Abstract
Wachstum in modernen Ökonomien ist wesentlich durch das Innovationsverhalten von Firmen bestimmt. Aus demographischer Sicht fragt sich, ob die absehbare Alterung der Arbeitskräfte das Innovationspotential der Ökonomien beeinflusst. Um diese Frage zu beantworten, untersucht der Beitrag auf Basis eines deutschen Linked-Employer- Employee-Datensatzes, ob eine ältere Belegschaft die Fähigkeit eines Betriebes, Produktinnovationen zu generieren, vermindert. Das Vorgehen basiert auf einem Ordered- Logit-Ansatz, wobei das Innovationspotential einer Firma auf deren Altersstruktur regressiert wird. In der Analyse zeigen sich signifikante Alterseffekte. Das geschätzte Alters-Innovations-Profil folgt einem umgekehrt u-förmigen Verlauf, es erreicht sein Maximum bei einem Alter von ca. 40 Jahren. Eine gesonderte Schätzung zeigt darüber hinaus, dass insbesondere das Alter der Ingenieure von Relevanz ist.
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A Glimpse on Sectoral Convergence of Productivity Levels
Gerald Müller
IWH-Diskussionspapiere,
Nr. 133,
2001
Abstract
This paper examines the presence of sectoral convergence of labor productivity between 14 OECD countries. Using the OECD International Sectoral Data Base (ISDB), the paper looks at the developments within 12 distinct sectors during the period 1970-1995. The change of the coefficients of variance suggests that there is strong sectoral convergence within most service sectors while the evidence of convergence for Manufacturing as well as for Communication is rather weak. These findings are in line with most studies undertaken on this subject so far. It is concluded that economic theories at hand to explain growth and convergence (or divergence respectively) are of different importance for the sectors concerned. While models of the New Growth Theory seemed to be useful to explain growth mechanisms within Manufacturing and Communication, traditional models seemed to apply to most other sectors.
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Spillover Effects and R&D-Cooperations - The Influence of Market Structure
Anita Wölfl
IWH-Diskussionspapiere,
Nr. 122,
2000
Abstract
This paper examines empirically the role of market structure for the influence of spill-over effects on R&D-cooperations. The results of a microeconometric analysis, based on firm data on innovation, let in general presume that with intensified competition also the influence of spillovers on R&D-cooperation increases. However, competition seems to induce firms to search for effective firm-specific appropriation facilities first. Spillovers that are sufficiently high such that the internalisation effect from R&D-cooperation more than outweighs the competitive effect from research, only arise whenever firms are not able to protect their research results through any appropriation facility. Additionally, there is some evidence that spillover effects may even hinder firms from cooperating in R&D when there is intensive competition on the research stage.
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