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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How Selective Are Real Wage Cuts? A Micro-analysis Using Linked Employer–Employee Data
Boris Hirsch, Thomas Zwick
LABOUR: Review of Labour Economics and Industrial Relations,
Nr. 4,
2015
Abstract
Using linked employer–employee panel data for Germany, we investigate whether firms implement real wage reductions in a selective manner. In line with insider–outsider and several strands of efficiency wage theory, we find strong evidence for selective wage cuts with high-productivity workers being spared even when controlling for permanent differences in firms' wage policies. In contrast to some recent contributions stressing fairness considerations, we also find that wage cuts increase wage dispersion among peers rather than narrowing it. Notably, the same selectivity pattern shows up when restricting our analysis to firms covered by collective agreements or having a works council.
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Does the Plant Size–wage Differential Increase with Tenure? Affirming Evidence from German Panel Data
Daniel Fackler, Thorsten Schank, Claus Schnabel
Economics Letters,
2015
Abstract
We show that the major part of the plant size–wage premium in Germany is reflected in different wage growth patterns in plants of different size. This is consistent with the hypothesis that large firms ‘produce’ more skilled workers over time.
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The Levelling Effect of Product Market Competition on Gender Wage Discrimination
Boris Hirsch, Michael Oberfichtner, Claus Schnabel
IZA Journal of Labor Economics,
Nr. 19,
2014
Abstract
Using linked employer–employee panel data for West Germany that include direct information on the competition faced by plants, we investigate the effect of product market competition on the gender pay gap. Controlling for match fixed effects, we find that intensified competition significantly lowers the unexplained gap in plants with neither collective agreements nor a works council. Conversely, there is no effect in plants with these types of worker codetermination, which are unlikely to have enough discretion to adjust wages in the short run. We also document a larger competition effect in plants with few females in their workforces. Our findings are in line with Beckerian taste-based employer wage discrimination that is limited by competitive forces.
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The Impact of Female Managers on the Gender Pay Gap: Evidence from Linked Employer–Employee Data for Germany
Boris Hirsch
Economics Letters,
Nr. 3,
2013
Abstract
We find that increasing the female share in first-level management by 10% points decreases the unexplained within-job gender pay gap by 0.5 log points. The effect is more pronounced for the female share in second-level than in first-level management.
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Natural-resource or Market-seeking FDI in Russia? An Empirical Study of Locational Factors Affecting the Regional Distribution of FDI Entries
K. Gonchar, Philipp Marek
IWH Discussion Papers,
Nr. 3,
2013
Abstract
This paper conducts an empirical study of the factors that affect the spatial distribution of foreign direct investment (FDI) across regions in Russia; in particular, this paper is concerned with those regions that are endowed with natural resources and market-related benefits. Our analysis employs data on Russian firms with a foreign investor during the 2000-2009 period and linked regional statistics in the conditional logit model. The main findings are threefold. First, we conclude that one theory alone is not able to explain the geographical pattern of foreign investments in Russia. A combination of determinants is at work; market-related factors and the availability of natural resources are important factors in attracting FDI. The relative importance of natural resources seems to grow over time, despite shocks associated with events such as the Yukos trial. Second, existing agglomeration economies encourage foreign investors by means of forces generated simultaneously by sector-specific and inter-sectoral externalities. Third, the findings imply that service-oriented FDI co-locates with extraction industries in resource-endowed regions. The results are robust when Moscow is excluded and for subsamples including only Greenfield investments or both Greenfield investments and mergers and acquisitions (M&A).
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Women Move Differently: Job Separations and Gender
Boris Hirsch, Claus Schnabel
Journal of Labor Research,
Nr. 4,
2012
Abstract
Using a large German linked employer–employee data set and methods of competing risks analysis, this paper investigates gender differences in job separation rates to employment and nonemployment. In line with descriptive evidence, we find lower job-to-job and higher job-to-nonemployment transition probabilities for women than men when controlling for individual and workplace characteristics and unobserved plant heterogeneity. These differences vanish once we allow these characteristics to affect separations differently by gender. When additionally controlling for wages, we find that both separation rates are considerably lower and also significantly less wage-elastic for women than for men, suggesting an interplay of gender differences in transition behaviour and the gender pay gap.
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Do Women Benefit from Competitive Markets? Product Market Competition and the Gender Pay Gap in Germany
Boris Hirsch, Michael Oberfichtner, Claus Schnabel
Economics Bulletin,
Nr. 2,
2012
Abstract
Using a large linked employer–employee dataset for Germany with a direct plant-level measure of product market competition and controlling for job-cell fixed effects, we investigate whether relative wages of women benefit from strong competition. We find that the unexplained gender pay gap is about 2.4 log points lower in West German plants that face strong product market competition than in those experiencing weak competition, whereas no such link shows up for East Germany.
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Alterung und Arbeitsmarkt. Eine Untersuchung zum Einfluss des Alters von Beschäftigten auf Produktivität, Innovation und Mobilität
Lutz Schneider
IWH-Sonderhefte,
Nr. 3,
2011
Abstract
Die Studie hat die Folgen der Alterung von Beschäftigten für den Arbeitsmarkt zum Gegenstand. Namentlich werden die Produktivitäts- und Lohn-, die Innovations- sowie die Mobilitätseffekte des Alters auf empirischem Weg analysiert, der räumliche Fokus liegt dabei auf dem deutschen Arbeitsmarkt. Mit Blick auf die Produktivitäts- und Lohnwirkung des Alters liefert die ökonometrische Analyse von Betrieben des Verarbeitenden Gewerbes Hinweise auf einen positiven Einfluss des Anteils der mittleren Jahrgänge auf die betriebliche Produktivität.
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