Lecturers
Lecturers at CGDE Institutions Jordan Adamson Assistant Professor at Institute for Empirical Economic Research, Leipzig University. Website Course: Econometrics (winter term…
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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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IWH-DPE Call for Applications – Fall 2022 Intake
Vacancy IWH-DPE Call for Applications – Fall 2022 Intake We encourage outstanding students with a master degree in economics or related fields, such as mathematics, statistics,…
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IWH-DPE Call for Applications – Fall 2024 Intake
Vacancy The Halle Institute for Economic Research (IWH) is one of Germany’s leading economic research institutes. The IWH focuses on research in macroeconomics, financial…
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IWH-DPE Call for Applications – Fall 2020 Intake
Vacancy The Halle Institute for Economic Research (IWH) is one of Germany’s leading economic research institutes. The IWH focuses on research in macroeconomics, financial…
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Internships
Internship at Halle Institute for Economic Research (IWH) Interested in gaining an authentic insight in the interesting daily business and the variable tasks of an institute for…
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IWH-DPE Call for Applications – Fall 2020 Intake
Vacancy The Halle Institute for Economic Research (IWH) is one of Germany’s leading economic research institutes. The IWH focuses on research in macroeconomics, financial…
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European Firm Concentration and Aggregate Productivity
Tommaso Bighelli, Filippo di Mauro, Marc Melitz, Matthias Mertens
Journal of the European Economic Association,
No. 2,
2023
Abstract
This paper derives a European Herfindahl–Hirschman concentration index from 15 micro-aggregated country datasets. In the last decade, European concentration rose due to a reallocation of economic activity toward 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.
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Debatte um Intel-Ansiedlung: IWH veröffentlicht umstrittene Zitate im Volltext
Oliver Holtemöller
Einzelveröffentlichungen,
2023
Abstract
In einer öffentlichen Kontroverse über die Ansiedelung einer Chipfabrik in Magdeburg wurden Einschätzungen des Leibniz-Instituts für Wirtschaftsforschung Halle (IWH) teils stark kritisiert. Die Kritik bezieht sich auf einzelne Zitate aus einem Medienbericht. Nach Ansicht des IWH ergeben die Aussagen in ihrem ursprünglichen Zusammenhang ein anderes Bild, weshalb sie hier vollständig wiedergegeben werden.
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Sources of Large Firms’ Market Power and Why It Matters
Filippo di Mauro, Matthias Mertens, Bernardo Mottironi
VOXEU COLUMN,
January
2023
Abstract
Excessive market power has detrimental effects on the functioning of the economy, raising consumer prices, distorting the allocation of resources, and creating welfare losses. The existing literature has largely focussed on competition in product markets. This column argues that it is important to differentiate between various sources of firm market power on output and input (most notably labour) markets. European firm-level data reveals that large firms charge lower markups in product markets but exert their market power significantly in labour markets. Competition authorities can and must distinguish between the sources of market power when attempting to regulate it.
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