Innovation and Skills from a Sectoral Perspective: A Linked Employer-Employee Analysis
Lutz Schneider, Jutta Günther, Bianca Brandenburg
Economics of Innovation and New Technology,
2010
Abstract
Natur- und ingenieurwissenschaftliche Fähigkeiten sowie Management- und Führungskompetenzen werden häufig als Quelle von betrieblichen Innovationsaktivitäten betrachtet. Der vorliegende Artikel untersucht die Rolle von Humankapital im Sinne des formalen Bildungsabschlusses und des tatsächlich ausgeübten Berufes für die betriebliche Innovationstätigkeit im Rahmen eines Probit-Ansatzes, wobei zwischen sektoralen Innovationsregimen unterschieden wird. Die Analyse basiert auf einem Mikrodatensatz deutscher Betriebe (LIAB), welcher detaillierte Informationen über die Innovationsaktivitäten und die Qualifikation der Beschäftigten, verstanden als formaler Ausbildungsabschluss, ausgeübter Beruf und Erfahrung, enthält. Es zeigen sich signifikante Unterschiede der Humankapitalausstattung zwischen Sektoren, welche nach der Pavitt-Klassifikation unterschieden wurden. Sektoren mit einem hohen Anteil hochqualifizierter Beschäftigter sind überdurchschnittlich oft unter den Produktinnovatoren zu finden (spezialisierte Zulieferer und wissenschaftsbezogene Branchen). Indes lassen sich in den realisierten Regressionen keine signifikant positiven Effekte der Beschäftigtenqualifikation auf die Innovationstätigkeit eines Betriebes nachweisen.
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Openness and Income Disparities: Does Trade Explain The 'Mezzogiorno' Effect?
Claudia M. Buch, P. Monti
Review of World Economics,
No. 4,
2010
Abstract
We use Italian regional data to answer the question whether trade affects within-country income differentials. In Italy, the more affluent Northern regions trade more with the rest of the world than the poorer ones in the Southern “Mezzogiorno” regions. Prima facie, there is a positive correlation between external trade and per capita income. Studying this relationship empirically requires taking into account the endogenous component of trade. We argue that panel cointegration models can complement instrumental variables techniques to account for the endogeneity of trade in a panel context. Both methods show a positive link between trade openness and the level of income per capita.
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Produktivität – Alters- vs. Erfahrungseffekte
Lutz Schneider
Alterung und Arbeitsmarkt. Beiträge zur Jahrestagung 2007. Schriftenreihe der Deutschen Gesellschaft für Demographie, Band 3,
2008
Abstract
Angesichts der sich abzeichnenden Alterung der Erwerbsfähigen in Deutschland sowie der unzureichenden Arbeitsmarktchancen Älterer stellt sich die Frage, welchen Einfluss das Lebensalter, aber auch die akkumulierte Erfahrung auf die Produktivität von Beschäftigten ausübt. Kognitionswissenschaftliche Ansätze sprechen für negative Alterseffekte, welche durch die mit dem Alter verbundenen Erfahrungsgewinne – zumindest teilweise – kompensiert werden können. Zur Überprüfung dieser These wird der Linked-Employer-Employee-Datensatz des Instituts für Arbeitsmarkt- und Berufsforschung (LIAB) herangezogen. Auf der Basis einer betrieblichen Produktionsfunktion wird mittels regressionsanalytischer Methoden getestet, ob und wie sich Alter und Erfahrung der Beschäftigten eines Betriebs auf dessen Produktivität auswirken. Die Analyse beschränkt sich auf das Verarbeitende Gewerbe, es wird zwischen Lowtech- und Hightech-Sektor unterschieden.
Die realisierten Schätzungen für den Zeitraum von 2000 bis 2003 liefern klare Belege für einen umgekehrt u-förmigen Alters-Produktivitäts-Verlauf. Die mittlere Gruppe der 30- bis 50-Jährigen erbringt den höchsten, die Gruppe der über 50-Jährigen den geringsten Produktivitätsbeitrag. Erfahrungsakkumulation fördert die Leistung, indes zeigt sich, dass dieser Effekt zu schwach ist, um die negativen Alterseffekte zu kompensieren.
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Does Export Openness Increase Firm-level Output Volatility?
Claudia M. Buch, Jörg Döpke, H. Strotmann
World Economy,
No. 4,
2009
Abstract
There is a widespread concern that increased trade may lead to increased instability and thus risk at the firm level. Greater export openness can indeed affect firm-level volatility by changing the exposure and the reaction of firms to macroeconomic developments. The net effect is ambiguous from a theoretical point of view. This paper provides firm-level evidence on the link between openness and volatility. Using comprehensive data on more than 21,000 German manufacturing firms for the period 1980–2001, we analyse the evolution of firm-level output volatility and the link between volatility and export openness. Our paper has three main findings. First, firm-level output volatility is significantly higher than the level of aggregate volatility, but it displays similar patterns. Second, increased export openness lowers firm-level output volatility. This effect is primarily driven by variations along the extensive margin, i.e. by the distinction between exporters and non-exporters. Variations along the intensive margin, i.e. the volume of exports, tend to have a dampening impact on volatility as well. Third, small firms are more volatile than large firms.
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Growth, Volatility, and Credit Market Imperfections: Evidence from German Firms
Claudia M. Buch, Jörg Döpke
Journal of Economic Studies,
2008
Abstract
Purpose – The purpose of this paper is two-fold. First, it studies whether output volatility and growth are linked at the firm-level, using data for German firms. Second, it explores whether the link between volatility and growth depends on the degree of credit market imperfections.
Design/methodology/approach – The authors use a novel firm-level dataset provided by the Deutsche Bundesbank, the so-called Financial Statements Data Pool. The dataset has time series observations for German firms for the period 1997-2004, and the authors use information on the debt-to-assets or leverage ratio of firms to proxy for credit-constraints at the firm-level. As additional proxies for the importance of credit market imperfections, we use information on the size and on the legal status of firms.
Findings – The authors find that higher volatility has a negative impact on growth for small and a positive impact for larger firms. Higher leverage is associated with higher growth. At the same time, there is heterogeneity in the determinants of growth across firms from different sectors and across firms with a different legal status.
Practical implications – While most traditional macroeconomic models assume that growth and volatility are uncorrelated, a number of microeconomic models suggest that the two may be linked. However, it is unclear whether the link is positive or negative. The paper presents additional evidence regarding this question. Moreover, understanding whether credit market conditions affect the link between volatility and growth is of importance for policy makers since it suggests a channel through which the credit market can have long-run welfare implications. The results stress the importance of firm-level heterogeneity for the effects and effectiveness of economic policy measures.
Originality/value – The paper has two main novel features. First, it uses a novel firm-level dataset to analyze the determinants of firm-level growth. Second, it analyzes the growth-volatility nexus using firm-level data. To the best of the authors' knowledge, this is the first paper, which addresses the link between volatility, growth, and credit market imperfections using firm-level data.
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Alterung und technologisches Innovationspotential. Eine Linked Employer-Employee Analyse
Lutz Schneider
Zeitschrift für Bevölkerungswissenschaft,
No. 1,
2008
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 Innovationspotenzial 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 Innovationspotenzial 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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Foreign Subsidiaries in the East German Innovation System – Evidence from Manufacturing Industries
Jutta Günther, Björn Jindra, Johannes Stephan
IWH Discussion Papers,
No. 4,
2008
Abstract
This paper analyses the extent of technological capability of foreign subsidiaries located in East Germany, and looks at the determinants of foreign subsidiaries’ technological sourcing behaviour. The theory of international production underlines the importance of strategic and regional level variables. However, existing empirical approaches omit by and large regional level factors. We employ survey evidence from the “FDI micro data- base” of the IWH, that was only recently made available, to conduct our analyses. We find that foreign subsidiaries are above average technologically active in comparison to the whole East German manufacturing. This can be partially explained by the industrial structure of foreign direct investment. However, only a limited share of foreign subsidiaries with R&D and/or innovation activity source technological knowledge from the East German innovation system. If a subsidiary follows a competence augmenting strategy or does local trade, it is more likely to source technological knowledge locally. The endowment of a region with human capital and a scientific infrastructure has a positive effect too. The findings suggest that foreign subsidiaries in East Germany are only partially linked with the regional innovation system. Policy implications are discussed.
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Regional origins of employment volatility: evidence from German states
Claudia M. Buch
CES IFO Working Paper No. 2296,
2008
Abstract
Greater openness for trade can have positive welfare effects in terms of higher growth. But increased openness may also increase uncertainty through a higher volatility of employment. We use regional data from Germany to test whether openness for trade has an impact on volatility. We find a downward trend in the unconditional volatility of employment, paralleling patterns for output volatility. The conditional volatility of employment, measuring idiosyncratic developments across states, in contrast, has remained fairly unchanged. In contrast to evidence for the US, we do not find a significant link between employment volatility and trade openness.
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Does Qualification Drive Innovation? A Microeconometric Analysis Using Linked-employer-employee Data
Bianca Brandenburg, Jutta Günther, Lutz Schneider
IWH Discussion Papers,
No. 10,
2007
Abstract
Degree-level science and engineering skills as well as management and leadership skills are often referred to as a source of innovative activities within companies. Broken down by sectoral innovation patterns, this article examines the role of formal education and actual occupation for product innovation performance in manufacturing firms within a probit model. It uses unique micro data for Germany (LIAB) that contain detailed information about innovative activities and the qualification of employees. We find significant differences of the human capital endowment between sectors differentiated according to the Pavitt classification. Sectors with a high share of highly skilled employees engage in product innovation above average (specialized suppliers and science based industries). According to our hitherto estimation results, within these sectors the share of highly skilled employees does not, however, substantially increase the probability to be an innovative firm.
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FDI and Domestic Investment: An Industry-level View
Claudia M. Buch
CEPR. Discussion Paper No. 6464,
2007
Abstract
Previous empirical work on the link between domestic and foreign investment provides mixed results which partly depend on the level of aggregation of the data. We argue that the aggregated home country implications of foreign direct investment (FDI) cannot be gauged using firm-level data. Aggregated data, in turn, miss channels through which domestic and foreign activities interact. Instead, industry-level data provide useful information on the link between domestic and foreign investment. We theoretically show that the effects of FDI on the domestic capital stock depend on the structure of industries and the relative importance of domestic and multinational firms. Our model allows distinguishing intra-sector competition from inter-sector linkage effects. We test the model using data on German FDI. Using panel cointegration methods, we find evidence for a positive long-run impact of FDI on the domestic capital stock and on the stock of inward FDI. Effects of FDI on the domestic capital stock are driven mainly by intra-sector effects. For inward FDI, inter-sector linkages matter as well.
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