From Labor to Intermediates: Firm Growth, Input Substitution, and Monopsony
Matthias Mertens, Benjamin Schoefer
IWH Discussion Papers,
No. 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,
No. 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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Research Articles
Research Articles Explore cutting-edge research based on CompNet’s micro-aggregated firm-level data and related analytical tools. These articles cover empirical and theoretical…
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Job Market Candidates Marius Fourné Marius Fourné is a PhD candidate in Economics at the Halle Institute for Economic Research (IWH) and Martin Luther University of…
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Our Projects 07.2022 ‐ 12.2026 Evaluation of the InvKG and the federal STARK programme On behalf of the Federal Ministry of Economics and Climate Protection, the IWH and the RWI…
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Do Larger Firms Exert More Market Power? Markups and Markdowns along the Size Distribution
Matthias Mertens, Bernardo Mottironi
IWH-CompNet Discussion Papers,
No. 1,
2023
Abstract
Several models posit a positive cross-sectional correlation between markups and firm size, which characterizes misallocation, factor shares, and gains from trade. Accounting for labor market power in markup estimation, we find instead that larger firms have lower product markups but higher wage markdowns. The negative markup-size correlation turns positive when conditioning on markdowns, suggesting interactions between product and labor market power. Our findings are robust to common criticism (e.g., price bias, non-neutral technology) and hold across 19 European countries. We discuss possible mechanisms and resulting implications, highlighting the importance of studying input and output market power in a unified framework.
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Do Larger Firms Exert More Market Power? Markups and Markdowns along the Size Distribution
Matthias Mertens, Bernardo Mottironi
IWH Discussion Papers,
No. 1,
2023
Abstract
Several models posit a positive cross-sectional correlation between markups and firm size, which characterizes misallocation, factor shares, and gains from trade. Accounting for labor market power in markup estimation, we find instead that larger firms have lower product markups but higher wage markdowns. The negative markup-size correlation turns positive when conditioning on markdowns, suggesting interactions between product and labor market power. Our findings are robust to common criticism (e.g., price bias, non-neutral technology) and hold across 19 European countries. We discuss possible mechanisms and resulting implications, highlighting the importance of studying input and output market power in a unified framework.
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Coal Phase-out in Germany – Implications and Policies for Affected Regions
Pao-Yu Oei, Hauke Hermann, Philipp Herpich, Oliver Holtemöller, Benjamin Lünenbürger, Christoph Schult
Energy,
April
2020
Abstract
The present study examines the consequences of the planned coal phase-out in Germany according to various phase-out pathways that differ in the ordering of power plant closures. Soft-linking an energy system model with an input-output model and a regional macroeconomic model simulates the socio-economic effects of the phase-out in the lignite regions, as well as in the rest of Germany. The combination of two economic models offers the advantage of considering the phase-out from different perspectives and thus assessing the robustness of the results. The model results show that the lignite coal regions will exhibit losses in output, income and population, but a faster phase-out would lead to a quicker recovery. Migration to other areas in Germany and demographic changes will partially compensate for increasing unemployment, but support from federal policy is also necessary to support structural change in these regions.
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Klimaschutz und Kohleausstieg: Politische Strategien und Maßnahmen bis 2030 und darüber hinaus
Pao-Yu Oei, Casimir Lorenz, Sophie Schmalz, Hanna Brauers, Philipp Herpich, Christian von Hirschhausen, Claudia Kemfert, Barbara Dröschel, Jan Hildebrand, Juri Horst, Uwe Klann, Patrick Matschoss, Michael Porzig, Irina Rau, Bernhard Wern, Hans-Ulrich Brautzsch, Gerhard Heimpold, Katja Heinisch, Oliver Holtemöller, Christoph Schult, Hauke Hermann, Dirk Heyen, Katja Schumacher, Cornelia Ziehm
Pao-Yu Oei et al., Klimaschutz und Kohleausstieg: Politische Strategien und Maßnahmen bis 2030 und darüber hinaus. Abschlussbericht. Climate Change 27/2019. Dessau-Roßlau: Umweltbundesamt,
2019
published in: Energy
Abstract
Die vorliegende Studie untersucht die ökonomischen Auswirkungen eines durch die Klimaziele der Bundesregierung induzierten Kohleausstiegs in Deutschland. Der Fokus liegt hierbei auf der Braunkohlenwirtschaft – insbesondere in den Braunkohleregionen. Diese werden in einem ersten Schritt räumlich abgegrenzt und beschrieben. Für die weitere Untersuchung bilden energiewirtschaftliche Modellierungen die Grundlage. Diese liefern Ausstiegspfade für die Kohlenutzung, welche sich in den gewählten Kriterien (spezifische Emissionen oder Kraftwerksalter) für die Abschaltungsreihenfolge der Kraftwerke unterscheiden. Darauf aufbauend werden mit Hilfe eines Input-Output-Modells und eines regionalwirtschaftlichen Modells die ökonomischen Effekte des Kohleausstiegs sowohl in den Braunkohleregionen als auch im übrigen Deutschland untersucht. Die Modelle zeigen, dass bei einem frühzeitigen Ausstieg die negativen Effekte des Strukturwandels früher zu Tage treten. Dafür können in diesem Fall jedoch Erholungseffekte laut regionalwirtschaftlichem Modell stärker den negativen Effekten entgegenwirken.
Die Studie untersucht die wirtschaftlichen Chancen in den Braunkohleregionen. Diese bestehen im Grundsatz in einem breiten Spektrum wirtschaftlicher Aktivitäten. Die durchgeführten, exemplarischen Untersuchungen zeigen für alle Braunkohleregionen bedeutende Beschäftigungspotenziale auf. Bereits die aufgezeigten potenziellen Arbeitsplätze in den Bereichen Erneuerbare Energien und Gebäudesanierung können dem Stellenabbau im Zuge des untersuchten Strukturwandels durch den Kohleausstieg entgegenwirken. Abschließend werden flankierende politische Instrumente beschrieben, die die Regionen bei dem bevorstehenden Strukturwandel nutzen und unterstützen können.
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15.01.2019 • 1/2019
Schneller Braunkohleausstieg hat deutliche Folgen in betroffenen Regionen
Wenn Deutschland die Braunkohleverstromung vorzeitig beendet, wird die Gesamtwirtschaft kaum beeinträchtigt. Allerdings zeigen Berechnungen des Leibniz-Instituts für Wirtschaftsforschung Halle (IWH) spürbare Effekte auf die Arbeitsmärkte des Rheinlands, Mitteldeutschlands und der Lausitz. Eine Region ist besonders betroffen von Arbeitslosigkeit und Abwanderung.
Oliver Holtemöller
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