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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Political Polarization and Finance
Elisabeth Kempf, Margarita Tsoutsoura
Annual Review of Financial Economics,
Vol. 16 (November),
2024
Abstract
We review an empirical literature that studies how political polarization affects financial decisions. We first discuss the degree of partisan segregation in finance and corporate America, the mechanisms through which partisanship may influence financial decisions, and the available data sources used to infer individuals’ partisan leanings. We then describe and discuss the empirical evidence. Our review suggests an economically large and often growing partisan gap in the financial decisions of households, corporate executives, and financial intermediaries. Partisan alignment between individuals explains team and financial relationship formation, with initial evidence suggesting that high levels of partisan homogeneity may be associated with economic costs. We conclude by proposing several promising directions for future research.
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IWH-DPE in a Nutshell
IWH-DPE in a Nutshell Job Market Candidates Candidates from all four IWH departments will enter the academic job market in 2025/2026. Visit our job market page and learn more…
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From Shares to Machines: How Common Ownership Drives Automation
Joseph Emmens, Dennis Hutschenreiter, Stefano Manfredonia, Felix Noth, Tommaso Santini
IWH Discussion Papers,
Nr. 23,
2024
Abstract
This paper studies whether common ownership affects the direction of technological change. We develop a task-based model in which commonly owned firms internalize wage externalities from labor market rivals, increasing incentives to automate. We establish causality by exploiting institutional investor mergers in a dynamic DiD design, using U.S. data on institutional ownership, establishment-level employment, and automation patents. When institutional investor mergers increase common ownership among labor market rivals, the annual probability of those firms producing an automation patent increases by 3.79 percentage points and employment growth falls by 3.8 percentage points on average. Both effects disappear without labor market overlap.
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Lehre
Lehre Im Rahmen der Kooperationsbeziehungen des IWH mit deutschen und ausländischen Hochschulen sind die Wissenschaftlerinnen und Wissenschaftler des Instituts auch in der Lehre…
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FAQ
Frequently Asked Questions Answers to the most frequently asked questions about doctoral studies at IWH. What are the IWH's main areas of research? Researchers at IWH are leading…
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Department Profiles
Research Profiles of the IWH Departments All doctoral students are allocated to one of the four research departments (Financial Markets – Laws, Regulations and Factor Markets –…
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Alumni
Alumni IWH provides guidance and support in job placement after graduation, including letters of recommendation and career advice. Graduates have found placements in academia…
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Placement News
Placement News IWH-DPE graduate placements 2024: St Andrews and the Bank of England Eleonora Sfrappini from the Financial Markets department and Tommaso Bighelli from the…
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Past Events
Past Events 14. CompNet Annual Conference (Vilnius, 25-26 September 2025) The 14th CompNet Annual Conference, co-hosted with the Bank of Lithuania, took place on 25–26 September…
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