8th CompNet Annual Conference
From Micro to Macro: Market Power, Firms’ Heterogeneity and Investment 8th Annual Conference of CompNet, jointly organized with IMF, EIB, ENRI and IWH, March 18-19 2019, European…
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7th CompNet Annual Conference
Economic Growth, Trade and Productivity Dispersion 7 th CompNet Annual Conference, June 21-22, 2018, Leopoldina, Halle (Saale), Germany The main target of this conference was to…
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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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Corporate Loan Spreads and Economic Activity
Anthony Saunders, Alessandro Spina, Sascha Steffen, Daniel Streitz
Review of Financial Studies,
Vol. 38 (2),
2025
Abstract
We use secondary corporate loan-market prices to construct a novel loan-market-based credit spread. This measure has considerable predictive power for economic activity across macroeconomic outcomes in both the U.S. and Europe and captures unique information not contained in public market credit spreads. Loan-market borrowers are compositionally different and particularly sensitive to supply-side frictions as well as financial frictions that emanate from their own balance sheets. This evidence highlights the joint role of financial intermediary and borrower balance-sheet frictions in understanding macroeconomic developments and enriches our understanding of which type of financial frictions matter for the economy.
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Creditor-control Rights and the Nonsynchronicity of Global CDS Markets
Iftekhar Hasan, Miriam Marra, Eliza Wu, Gaiyan Zhang
Review of Corporate Finance Studies,
Vol. 14 (1),
2025
Abstract
We analyze how creditor rights affect the nonsynchronicity of global corporate credit default swap spreads (CDS-NS). CDS-NS is negatively related to the country-level creditor-control rights, especially to the “restrictions on reorganization” component, where creditor-shareholder conflicts are high. The effect is concentrated in firms with high investment intensity, asset growth, information opacity, and risk. Pro-creditor bankruptcy reforms led to a decline in CDS-NS, indicating lower firm-specific idiosyncratic information being priced in credit markets. A strategic-disclosure incentive among debtors avoiding creditor intervention seems more dominant than the disciplining effect, suggesting how strengthening creditor rights affects power rebalancing between creditors and shareholders.
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Essays on Firms and Market Performance
Tommaso Bighelli
PhD Thesis, db-thueringen,
2024
Abstract
In Chapter 1, I combine longitudinal administrative firm-level data from Germany with 8,000 local tax changes for identification to show that local tax hikes (cuts) increase (decrease) the local manufacturing share. Firm-level results reveal that this is due to wage, employment, firm entry, and labor productivity in the service sector being more responsive to a tax shock than in manufacturing. With this evidence in mind, I calibrate a two-sector model with heterogeneous firms and profit tax to show that, owing to different structural parameters, a corporate tax cut disproportionately benefits service firms, contributing to the sectoral reallocation from manufacturing to service. In Chapter 2, we derive a European Herfindahl-Hirschman concentration index from 15 micro-aggregated country datasets. We show that European concentration rose due to a reallocation of economic activity towards large and concentrated industries. Over the same period, productivity gains from an increasing allocative efficiency of the European market accounted for 50% of European productivity growth while markups stayed constant. Using country-industry variation, we show that changes in concentration are positively associated with changes in productivity and allocative efficiency. This holds across most sectors and countries and supports the notion that rising concentration in Europe reflects a more efficient market environment rather than weak competition and rising market power. In chapter 3, We study the consequences of the Covid-19 pandemic and related policy support on productivity. We employ an extensive micro-distributed exercise to access otherwise unavailable individual data on firm performance and government subsidies. Our cross-country evidence for five EU countries shows that the pandemic led to a significant short-term decline in aggregate productivity and the direct support to firms had only a limited positive effect on productivity developments.
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The Effects of Antitrust Laws on Horizontal Mergers: International Evidence
Chune Young Chung, Iftekhar Hasan, JiHoon Hwang, Incheol Kim
Journal of Financial and Quantitative Analysis,
Vol. 59 (7),
2024
Abstract
This study examines how antitrust law adoptions affect horizontal merger and acquisition (M&A) outcomes. Using the staggered introduction of competition laws in 20 countries, we find antitrust regulation decreases acquirers’ five-day cumulative abnormal returns surrounding horizontal merger announcements. A decrease in deal value, target book assets, and industry peers' announcement returns are consistent with the market power hypothesis. Exploiting antitrust law adoptions addresses a downward bias to an estimated effect of antitrust enforcement (Baker (2003)). The potential bias from heterogeneous treatment effects does not nullify our results. Overall, antitrust policies seem to deter post-merger monopolistic gains, potentially improving customer welfare.
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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,
No. 23,
2024
Abstract
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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,
No. 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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Worker Beliefs about Outside Options
Simon Jäger, Christopher Roth, Nina Roussille, Benjamin Schoefer
Quarterly Journal of Economics,
Vol. 139 (3),
2024
Abstract
Standard labor market models assume that workers hold accurate beliefs about the external wage distribution, and hence their outside options with other employers. We test this assumption by comparing German workers’ beliefs about outside options with objective benchmarks. First, we find that workers wrongly anchor their beliefs about outside options on their current wage: workers that would experience a 10% wage change if switching to their outside option only expect a 1% change. Second, workers in low-paying firms underestimate wages elsewhere. Third, in response to information about the wages of similar workers, respondents correct their beliefs about their outside options and change their job search and wage negotiation intentions. Finally, we analyze the consequences of anchoring in a simple equilibrium model. In the model, anchored beliefs keep overly pessimistic workers stuck in low-wage jobs, which gives rise to monopsony power and labor market segmentation.
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