European Firm Concentration and Aggregate Productivity
Tommaso Bighelli, Filippo di Mauro, Marc Melitz, Matthias Mertens
Abstract
This article 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 towards large and concentrated industries. Over the same period, productivity gains from reallocation accounted for 50% of European productivity growth and 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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Finance-Growth Nexus and Banking Efficiency: The Impact of Microfinance Institutions
Afsheen Abrar, Iftekhar Hasan, Rezaul Kabir
Journal of Economics and Business,
March-April
2021
Abstract
This paper investigates the relative importance of microfinance institutions (MFIs) at both the macro (financial development, economic growth, income inequality, and poverty) and micro levels (efficiency of traditional commercial banks). We observe a significant impact on most of the fronts. MFIs’ participation increases overall savings (total bank deposits) and credit allocation (loans to private sector) in the economy. Their involvement enhances economic welfare by reducing income inequality and poverty. Additionally, their active presence helps to discipline the traditional commercial banks by subjecting them to more competition triggering higher efficiency.
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Private Equity in the Hospital Industry
Janet Gao, Yongseok Kim, Merih Sevilir
ECGI Working Paper,
Nr. 787,
2021
Abstract
We examine employment and patient outcomes at hospitals acquired by private equity (PE) firms and PE-backed hospitals. While employment declines at PE-acquired hospitals, core medical workers (physicians, nurses, and pharmacists) increase significantly. The proportion of wages paid to core workers increases at PE-acquired hospitals whereas the proportion paid to administrative employees declines. These results are most pronounced for deals where the acquirers are publicly traded PE-backed hospitals. Non-PE-backed acquirers also cut employment but do not increase core workers or reduce administrative expenditures. Finally, PE-backed acquirers are not associated with worse patient satisfaction or mortality rates compared to their non-PE-backed counterparts.
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Public Bank Guarantees and Allocative Efficiency
Reint E. Gropp, Andre Guettler, Vahid Saadi
Journal of Monetary Economics,
December
2020
Abstract
A natural experiment and matched bank/firm data are used to identify the effects of bank guarantees on allocative efficiency. We find that with guarantees in place unproductive firms receive larger loans, invest more, and maintain higher rates of sales and wage growth. Moreover, firms produce less productively. Firms also survive longer in banks’ portfolios and those that enter guaranteed banks’ portfolios are less profitable and productive. Finally, we observe fewer economy-wide firm exits and bankruptcy filings in the presence of guarantees. Overall, the results are consistent with the idea that guaranteed banks keep unproductive firms in business for too long.
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Die Entfaltung einer Marktwirtschaft – Die ostdeutsche Wirtschaft fünf Jahre nach der Währungsunion
Rüdiger Pohl
Beitrag in IWH-Sammelwerk,
Festschrift für Gerhard Heimpold, IWH
2020
Abstract
Die Öffnung der Mauer am 9. November 1989, die Einführung der Deutschen Mark (DM) in der DDR zum 1. Juli 1990, die Wiedervereinigung am 3. Oktober 1990: Diese drei Daten markieren vor dem Hintergrund des Zusammenbruchs des Sozialismus in Osteuropa eine historische Umwälzung, die nicht nur die politischen Verhältnisse in Deutschland grundlegend verändert hat, sondern auch eine neue deutsche Volkswirtschaft hervorbringen sollte. Das marktwirtschaftliche System, in dessen Ordnungsrahmen der Westen des Landes zu Wohlstand gekommen ist, würde nun – so waren die Erwartungen – auch im Osten des Landes eine dynamische Wirtschaftsentwicklung einleiten und die Mangel des sozialistischen Systems der DDR vergessen machen. Die Erwartungen waren hoch, ja euphorisch. Durch die Aufhebung aller Einfuhrbeschränkungen und die Ausstattung der DDR-Bürger mit konvertibler DM wurden lange aufgestaute Konsumwünsche rasch erfüllbar. Weil nicht mehr wie zuvor chronische Materialengpässe immer wieder Produktionsstillstand verursachen würden, konnte ein sprunghafter Effizienzzuwachs in der Produktion erwartet werden. Das Unternehmertum, in der DDR systematisch eingeengt und bis zur volkswirtschaftlichen Bedeutungslosigkeit reduziert, würde sich entfalten und für Arbeitsplätze und steigende Einkommen sorgen. Angesichts des Nachholbedarfs an Modernisierung im Maschinenpark und in der Infrastruktur versprachen Investitionen im Osten eine hohe Rentabilität; das musste einen reichlichen Zustrom auswärtigen Kapitals auslösen. Zwar würde der Übergang vom Sozialismus zur Marktwirtschaft auch Lasten verursachen, aber nach verbreiteter Auffassung war nur eine „Anschubfinanzierung“ als finanzielle Unterstützung für den Osten durch den Westen nötig. Skeptische Stimmen, die in Ostdeutschland keine signifikanten Standortvorteile entdecken konnten und deswegen einen schmerzhaften Transformationsprozess erwarteten, gab es auch, doch wollte ihnen kaum jemand Gehör schenken. Zu sehr waren die Hoffnungen auf wirtschaftlichen Wohlstand ausgerichtet; die Befreiung von jahrzehntelanger staatlicher Bevormundung und Einschränkung stärkte die Einschätzung, dass das Erhoffte mit entsprechender Anstrengung auch erreichbar ist. Der „Aufholprozess“ – der Abbau des Einkommensrückstandes gegenüber Westdeutschland – schien nur eine Angelegenheit von wenigen Jahren zu sein.
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Labor Market Power and the Distorting Effects of International Trade
Matthias Mertens
International Journal of Industrial Organization,
January
2020
Abstract
This article examines how final product trade with China shapes and interacts with labor market imperfections that create market power in labor markets and prevent an efficient market outcome. I develop a framework for measuring such labor market power distortions in monetary terms and document large degrees of these distortions in Germany's manufacturing sector. Import competition only exerts labor market disciplining effects if firms, rather than employees, possess labor market power. Otherwise, increasing export demand and import competition both fortify existing distortions, which decreases labor market efficiency. This widens the gap between potential and realized output and thus diminishes classical gains from trade.
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How Forecast Accuracy Depends on Conditioning Assumptions
Carola Engelke, Katja Heinisch, Christoph Schult
IWH Discussion Papers,
Nr. 18,
2019
Abstract
This paper examines the extent to which errors in economic forecasts are driven by initial assumptions that prove to be incorrect ex post. Therefore, we construct a new data set comprising an unbalanced panel of annual forecasts from different institutions forecasting German GDP and the underlying assumptions. We explicitly control for different forecast horizons to proxy the information available at the release date. Over 75% of squared errors of the GDP forecast comove with the squared errors in their underlying assumptions. The root mean squared forecast error for GDP in our regression sample of 1.52% could be reduced to 1.13% by setting all assumption errors to zero. This implies that the accuracy of the assumptions is of great importance and that forecasters should reveal the framework of their assumptions in order to obtain useful policy recommendations based on economic forecasts.
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Vertical Grants and Local Public Efficiency
Ivo Bischoff, Peter Bönisch, Peter Haug, Annette Illy
Public Finance Review,
Nr. 3,
2019
Abstract
The existing empirical literature on the impact of vertical grants on local public-sector efficiency yields mixed results. Given the fact that vertical financial equalization systems often reduce differences in fiscal capacity, we argue that empirical studies based on cross-sectional data may yield a positive relationship between grants and efficiency of public service production even when the underlying causal effect is not. We provide a simple illustrative theoretical model to show the logic of our argument and illustrate its relevance by an empirical case study for the German state of Saxony-Anhalt. We show that our main argument of an inference-disturbing effect applies to those existing studies that are more optimistic about the impact of vertical grants. Finally, we argue that it may disturb the inference drawn from studies in a number of other countries where vertical grants—intended or not—concentrate in fiscally weak municipalities.
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