R&D Collaborations and the Role of Proximity
Philipp Marek, Mirko Titze, Clemens Fuhrmeister, Ulrich Blum
Regional Studies,
Nr. 12,
2017
Abstract
R&D collaborations and the role of proximity. Regional Studies. This paper explores the impact of proximity measures on knowledge exchange measured by granted research and development (R&D) collaboration projects in German NUTS-3 regions. The results are obtained from a spatial interaction model including eigenvector spatial filters. Not only geographical but also other forms of proximity (technological, organizational and institutional) have a significant influence on the emergence of collaborations. Furthermore, the results suggest interdependences between proximity measures. Nevertheless, the analysis does not show that other forms of proximity may compensate for missing geographical proximity. The results indicate that (subsidized) collaborative innovation activities tend to cluster.
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Criminal Network Formation and Optimal Detection Policy: The Role of Cascade of Detection
Liuchun Deng, Yufeng Sun
Journal of Economic Behavior and Organization,
September
2017
Abstract
This paper investigates the effect of cascade of detection, how detection of a criminal triggers detection of his network neighbors, on criminal network formation. We develop a model in which criminals choose both links and actions. We show that the degree of cascade of detection plays an important role in shaping equilibrium criminal networks. Surprisingly, greater cascade of detection could reduce ex ante social welfare. In particular, we prove that full cascade of detection yields a weakly denser criminal network than that under partial cascade of detection. We further characterize the optimal allocation of the detection resource and demonstrate that it should be highly asymmetric among ex ante identical agents.
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Benchmark Value-added Chains and Regional Clusters in R&D-intensive Industries
Reinhold Kosfeld, Mirko Titze
International Regional Science Review,
Nr. 5,
2017
Abstract
Although the phase of euphoria seems to be over, policy makers and regional agencies have maintained their interest in cluster policy. Modern cluster theory provides reasons for positive external effects that may accrue from interaction in a group of proximate enterprises operating in common and related fields. Although there has been some progress in locating clusters, in most cases only limited knowledge on the geographical extent of regional clusters has been established. In the present article, we present a hybrid approach to cluster identification. Dominant buyer–supplier relationships are derived by qualitative input–output analysis from national input–output tables, and potential regional clusters are identified by spatial scanning. This procedure is employed to identify clusters of German research and development-intensive industries. A sensitivity analysis reveals good robustness properties of the hybrid approach with respect to variations in the quantitative cluster composition.
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Joint R&D Subsidies, Related Variety, and Regional Innovation
T. Broekel, Matthias Brachert, M. Duschl, T. Brenner
International Regional Science Review,
Nr. 3,
2017
Abstract
Subsidies for research and development (R&D) are an important tool of public R&D policy, which motivates extensive scientific analyses and evaluations. This article adds to this literature by arguing that the effects of R&D subsidies go beyond the extension of organizations’ monetary resources invested into R&D. It is argued that collaboration induced by subsidized joint R&D projects yield significant effects that are missed in traditional analyses. An empirical study on the level of German labor market regions substantiates this claim, showing that collaborative R&D subsidies impact regions’ innovation growth when providing access to related variety and embedding regions into central positions in cross-regional knowledge networks.
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11.04.2017 • 18/2017
Pionierkunde Staat: Wie die öffentliche Nachfrage private Innovationen antreiben kann
Gerade in technologieintensiven Branchen kann der Staat durch seine Nachfrage den privaten Markt erweitern – und Anreize für privatwirtschaftliche Forschung und Entwicklung setzen, erklärt Viktor Slavtchev vom Leibniz-Institut für Wirtschaftsforschung Halle (IWH).
Viktor Slavtchev
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Innovation Network
Daron Acemoglu, Ufuk Akcigit, William R. Kerr
Proceedings of the National Academy of Sciences of the United States of America (PNAS),
Nr. 41,
2016
Abstract
Technological progress builds upon itself, with the expansion of invention in one domain propelling future work in linked fields. Our analysis uses 1.8 million US patents and their citation properties to map the innovation network and its strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975–1994. The interaction of this preexisting network structure with patent growth in upstream technology fields has strong predictive power on future innovation after 1995. This pattern is consistent with the idea that when there is more past upstream innovation for a particular technology class to build on, then that technology class innovates more.
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Declining Business Dynamism: What We Know and the Way Forward
Ryan A. Decker, John Haltiwanger, Ron S. Jarmin, Javier Miranda
American Economic Review: Papers and Proceedings,
Nr. 5,
2016
Abstract
A growing body of evidence indicates that the U.S. economy has become less dynamic in recent years. This trend is evident in declining rates of gross job and worker flows as well as declining rates of entrepreneurship and young firm activity, and the trend is pervasive across industries, regions, and firm size classes. We describe the evidence on these changes in the U.S. economy by reviewing existing research. We then describe new empirical facts about the relationship between establishment-level productivity and employment growth, framing our results in terms of canonical models of firm dynamics and suggesting empirically testable potential explanations.
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IWH-FuE-Mikrodatenbank: Teil 1: Daten, Datenherkunft und Datenqualität
Matthias Brachert, Wilfried Ehrenfeld, Alexander Giebler, Mirko Titze
IWH Technical Reports,
Nr. 1,
2016
Abstract
Nahezu alle entwickelten Volkswirtschaften haben Programme zur Förderung von Forschung und Entwicklung (FuE) eingeführt. Allerdings ist sehr wenig darüber bekannt, welche Programme eigentlich genau zur Anwendung kommen, welche finanziellen Mittel dafür aufgebracht werden und ob die Programme in der Art und Weise wirken, wie sie ursprünglich intendiert waren. Evaluationsstudien, die auf kausalen Untersuchungsdesigns basieren, können einen wertvollen Beitrag zur Beantwortung der Frage leisten, ob ein Programm tatsächlich Wirkungen entfaltet und welcher der verschiedenen Ansätze am erfolgversprechendsten ist.
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Does the Technological Content of Government Demand Matter for Private R&D? Evidence from US States
Viktor Slavtchev, Simon Wiederhold
American Economic Journal: Macroeconomics,
Nr. 2,
2016
Abstract
Governments purchase everything from airplanes to zucchini. This paper investigates the role of the technological content of government procurement in innovation. In a theoretical model, we first show that a shift in the composition of public purchases toward high-tech products translates into higher economy-wide returns to innovation, leading to an increase in the aggregate level of private R&D. Using unique data on federal procurement in US states and performing panel fixed-effects estimations, we find support for the model's prediction of a positive R&D effect of the technological content of government procurement. Instrumental-variable estimations suggest a causal interpretation of our findings.
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Im Fokus: Interkommunale Kooperation ist deutlich im Kommen – Ergebnisse einer Kommunalbefragung des IWH und der Universität Kassel
Martin T. W. Rosenfeld, Ivo Bischoff, C. Bergholz, Simon Melch, Peter Haug, F. Blaeschke
Wirtschaft im Wandel,
Nr. 1,
2016
Abstract
Interkommunale Kooperation wird vielfach als ein Mittel angesehen, mit dem speziell Städte und Gemeinden außerhalb der großen Ballungsräume die Folgen des demographischen Wandels und des zunehmenden interregionalen Standortwettbewerbs besser bewältigen könnten. Obschon immer mehr Gemeinden bei ihrer Aufgabenerfüllung zusammenarbeiten, fehlen für Deutschland bislang großflächige empirische Untersuchungen zum Phänomen der interkommunalen Kooperation. Der vorliegende Beitrag stellt Ergebnisse aus einer Befragung von 6 745 Gemeinden abseits der großen Ballungsräume zu ihrem Kooperationsverhalten in den Aufgabenbereichen Allgemeine Verwaltung, Bauhof und Tourismusmarketing vor. Die Auswertung der 1 321 Antworten gewährt aktuelle Einblicke in Merkmale und Tendenzen der interkommunalen Zusammenarbeit. Es werden unter anderem Befunde zum räumlichen, zeitlichen und thematischen Auftreten sowie zu den dahinterstehenden Rechtsformen und Motiven vorgestellt. Abschließend wird ein Ausblick auf die Möglichkeiten gegeben, mit den erhobenen Daten die Fragen nach den Wirkungen und den Bedingungen für das Zustandekommen von interkommunaler Kooperation zu beantworten.
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