From Labor to Intermediates: Firm Growth, Input Substitution, and Monopsony
Matthias Mertens, Benjamin Schoefer
IWH Discussion Papers,
Nr. 24,
2024
Abstract
We document and dissect a new stylized fact about firm growth: the shift from labor to intermediate inputs. This shift occurs in input quantities, cost and output shares, and output elasticities. We establish this fact using German firm-level data and replicate it in administrative firm data from 11 additional countries. We also document these patterns in micro-aggregated industry data for 20 European countries (and, with respect to industry cost shares, for the US). We rationalize this novel regularity within a parsimonious model featuring (i) an elasticity of substitution between intermediates and labor that exceeds unity, and (ii) an increasing shadow price of labor relative to intermediates, due to monopsony power over labor or labor adjustment costs. The shift from labor to intermediates accounts for one half to one third of the decline in the labor share in growing firms (the remainder is due to wage markdowns and markups) and rationalizes most of the labor share decline in growing industries.
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From Labor to Intermediates: Firm Growth, Input Substitution, and Monopsony
Matthias Mertens, Benjamin Schoefer
IWH-CompNet Discussion Papers,
Nr. 1,
2024
Abstract
We document and dissect a new stylized fact about firm growth: the shift from labor to intermediate inputs. This shift occurs in input quantities, cost and output shares, and output elasticities. We establish this fact using German firm-level data and replicate it in administrative firm data from 11 additional countries. We also document these patterns in micro-aggregated industry data for 20 European countries (and, with respect to industry cost shares, for the US). We rationalize this novel regularity within a parsimonious model featuring (i) an elasticity of substitution between intermediates and labor that exceeds unity, and (ii) an increasing shadow price of labor relative to intermediates, due to monopsony power over labor or labor adjustment costs. The shift from labor to intermediates accounts for one half to one third of the decline in the labor share in growing firms (the remainder is due to wage markdowns and markups) and rationalizes most of the labor share decline in growing industries.
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Robots, Occupations, and Worker Age: A Production-unit Analysis of Employment
Liuchun Deng, Steffen Müller, Verena Plümpe, Jens Stegmaier
European Economic Review,
November
2024
Abstract
We analyse the impact of robot adoption on employment composition using novel micro data on robot use in German manufacturing plants linked with social security records and data on job tasks. Our task-based model predicts more favourable employment effects for the least routine-task intensive occupations and for young workers, with the latter being better at adapting to change. An event-study analysis of robot adoption confirms both predictions. We do not find adverse employment effects for any occupational or age group, but churning among low-skilled workers rises sharply. We conclude that the displacement effect of robots is occupation biased but age neutral, whereas the reinstatement effect is age biased and benefits young workers most.
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Nachlassende Unternehmensdynamik in Europa: Die Rolle von Schocks und Reaktionsfähigkeit
Filippo Biondi, Sergio Inferrera, Matthias Mertens, Javier Miranda
Wirtschaft im Wandel,
Nr. 3,
2024
Abstract
Wir untersuchen die Veränderung der Unternehmensdynamik in Europa seit 2000 anhand neuer Daten, die wir für 19 europäische Länder erhoben haben. In allen Ländern dokumentieren wir einen breit angelegten Rückgang der Unternehmensdynamik, der die meisten Wirtschaftszweige und Firmengrößenklassen betrifft. Große und ältere Unternehmen verzeichnen den stärksten Rückgang der Unternehmensdynamik. Gleichzeitig geht der Anteil an Personen, die in jungen Unternehmen arbeiten, zurück. In Übereinstimmung mit Ergebnissen aus den USA reagieren Unternehmen in Europa weniger stark auf Produktivitätsveränderungen als früher („Reaktivität von Firmen“), was einen Teil des Rückgangs der Unternehmensdynamik erklärt. Im Gegensatz zur bisherigen Evidenz für die USA hat sich in Europa jedoch auch die Dynamik von Produktivitätsschocks abgeschwächt, was einen weiteren Teil des Rückgangs der Unternehmensdynamik erklärt. Für das deutsche Verarbeitende Gewerbe berechnen wir, dass der Rückgang der Reaktivität von Firmen ca. 40% des Rückgangs der Unternehmensdynamik erklärt, während die Abschwächung von Produktivitätsschocks 60% des Rückgangs der Unternehmensdynamik erklärt. Diese Prozesse deuten darauf hin, dass Marktfriktionen, wie beispielsweise Firmenmarktmacht in Europa, zu zunehmenden Fehlallokationen führen und dass die Innovationsprozesse sich abgeschwächt haben, woraus eine geringere Umverteilung von Marktanteilen zwischen Firmen resultiert.
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Productivity, Place, and Plants
Benjamin Schoefer, Oren Ziv
Review of Economics and Statistics,
Nr. 5,
2024
Abstract
Why do cities differ so much in productivity? A long literature has sought out systematic sources, such as inherent productivity advantages, market access, agglomeration forces, or sorting. We document that up to three quarters of the measured regional productivity dispersion is spurious, reflecting the “luck of the draw” of finite counts of idiosyncratically heterogeneous plants that happen to operate in a given location. The patterns are even more pronounced for new plants, hold for alternative productivity measures, and broadly extend to European countries. This large role for individual plants suggests a smaller role for places in driving regional differences.
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Income Shocks, Political Support and Voting Behaviour
Richard Upward, Peter Wright
IWH Discussion Papers,
Nr. 1,
2024
Abstract
We provide new evidence on the effects of economic shocks on political support, voting behaviour and political opinions over the last 25 years. We exploit a sudden, large and long-lasting shock in the form of job loss and trace out its impact on individual political outcomes for up to 10 years after the event. The availability of detailed information on households before and after the job loss event allows us to reweight a comparison group to closely mimic the job losers in terms of their observable characteristics, pre-existing political support and voting behaviour. We find consistent, long-lasting but quantitatively small effects on support and votes for the incumbent party, and short-lived effects on political engagement. We find limited impact on the support for fringe or populist parties. In the context of Brexit, opposition to the EU was much higher amongst those who lost their jobs, but this was largely due to pre-existing differences which were not exacerbated by the job loss event itself.
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Medienecho Dezember 2024 Steffen Müller: Konjunktur: Weniger Unternehmen melden Studie zufolge Insolvenz im November in: Handelsblatt.com, 10.12.2024 Steffen Müller: 1345…
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Declining Business Dynamism in Europe: The Role of Shocks, Market Power, and Technology
Filippo Biondi, Sergio Inferrera, Matthias Mertens, Javier Miranda
IWH-CompNet Discussion Papers,
Nr. 2,
2023
Abstract
We study changes in business dynamism in Europe after 2000 using novel micro-aggregated data that we collected for 19 European countries. In all countries, we document a broad-based decline in job reallocation rates that concerns most economic sectors and size classes. This decline is mainly driven by dynamics within sectors, size, and age classes rather than by compositional changes. Large and mature firms experience the strongest decline in job reallocation rates. Simultaneously, the employment shares of young firms decline. Consistent with US evidence, firms’ employment has become less responsive to productivity shocks. However, the dispersion of firms’ productivity shocks has decreased too. To enhance our understanding of these patterns, we derive and apply a novel firm-level framework that relates changes in firms’ sales, market power, wages, and production technology to firms’ responsiveness and job reallocation.
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