Growth Clubs and Regional Economic Convergence in Germany
Oliver Holtemöller, Christoph Schult, Anna Solms
IWH Discussion Papers,
No. 4,
2026
Abstract
Many countries and regions remain below the level of economic activity of the world’s most advanced economies. Some countries form growth clubs, some are stuck in the middle-income trap, and some stay on a very low level of economic activity. Although this situation is well documented on the country level, there is less evidence at the sub-national level within countries. We estimate county-level capital stocks and price indices and provide a comprehensive county-level data set for Germany. We find no evidence of convergence across all counties even if we condition on important drivers of long-term growth such as physical and human capital accumulation. Instead, we identify five convergence clubs, using endogenous clustering. We analyze differences in growth paths and describe the identified clusters based on variations in contributions of capital, labor, and total factor productivity to economic growth. Additionally, we examine the role of migration for regional development and find that net migration has in particular contributed to growth in richer regions.
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Konjunktur aktuell: Ölpreisschock gefährdet Erholung in Deutschland
Konjunktur aktuell,
No. 1,
2026
Abstract
Weltweit höhere Energiepreise infolge des neuen Golfkriegs verschlechtern die Aussichten für die deutsche Konjunktur, auch wenn Mehrausgaben der öffentlichen Hand die gesamtwirtschaftliche Expansion in diesem und im kommenden Jahr stützen werden. Die Produktion dürfte im Jahr 2026 um 0,7% und im Jahr darauf um 1% zunehmen. Ähnliche Expansionsraten sind auch für Ostdeutschland zu erwarten.
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Die Sorge um De-Industrialisierung führt in die Irre
Reint E. Gropp
Wirtschaft im Wandel,
No. 3,
2025
Abstract
Eine der größten Sorgen sowohl der aktuellen als auch der vorhergehenden Regierung ist es, in Deutschland wichtige Industrieproduktion zu erhalten beziehungsweise neu anzusiedeln. Dabei geht es um eine breite Palette von Sektoren: Halbleiter, Batterien, Chemie, Stahl, Pharmazeutika oder Elektroautos. Basierend auf diesem Ziel werden signifikante Subventionen gerechtfertigt, etwa Einzelsubventionen in Milliardenhöhe für individuelle Unternehmen (Intel, TSMC) oder generelle Vergünstigungen wie der Industriestrompreis. Deutschland ist mit dieser Sorge nicht allein; auch die USA, die EU, Indien, Indonesien und viele weitere Länder versuchen, Anreize für inländische Produktion zu schaffen.
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Konjunktur aktuell: Leichte Belebung kommt, Strukturprobleme bleiben
Konjunktur aktuell,
No. 4,
2025
Abstract
Die internationale Konjunktur scheint Ende 2025 weiter robust, die weltwirtschaftliche Expansion dürfte sich 2026 jedoch etwas abschwächen. Nach der vorliegenden Prognose steigt die Weltproduktion 2025 um 2,7%, um im Jahr darauf um 2,4% zuzulegen. Im Euroraum dürfte sich die wirtschaftliche Expansion in geringem Tempo fortsetzen. Die deutsche Wirtschaft befindet sich auf einem fragilen Erholungskurs. Für das Jahr 2026 ist aufgrund von finanzpolitischen Impulsen und gestiegenen Realeinkommen eine leichte Belebung zu erwarten. Die Produktion dürfte im kommenden Jahr um 1,0% zunehmen, nach 0,2% im Jahr 2025.
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The (Heterogeneous) Economic Effects of Private Equity Buyouts
Steven J. Davis, John Haltiwanger, Kyle Handley, Ben Lipsius, Josh Lerner, Javier Miranda
Management Science,
Vol. 71 (11),
2025
Abstract
The effects of private equity buyouts on employment, productivity, and job reallocation vary tremendously with macroeconomic and credit conditions, across private equity groups, and by type of buyout. We reach this conclusion by examining the most extensive database of U.S. buyouts ever compiled, encompassing thousands of buyout targets from 1980 to 2013 and millions of control firms. Employment shrinks 12% over two years after buyouts of publicly listed firms—on average, and relative to control firms—but expands 15% after buyouts of privately held firms. Postbuyout productivity gains at target firms are large on average and much larger yet for deals executed amid tight credit conditions. A postbuyout tightening of credit conditions or slowing of gross domestic product growth curtails employment growth and intrafirm job reallocation at target firms. We also show that buyout effects differ across the private equity groups that sponsor buyouts, and these differences persist over time at the group level. Rapid upscaling in deal flow at the group level brings lower employment growth at target firms. We relate these findings to theories of private equity that highlight agency problems at portfolio firms and within the private equity industry itself.
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25.09.2025 • 28/2025
Joint Economic Forecast Autumn 2025: Fiscal stimulus masks structural weakness
The German economy is emerging from the trough and is likely to regain some momentum over the next two years. Following stagnation in the first half of the year, the Joint Economic Forecast project group predicts gross domestic product growth of 0.2% for the current year in its fall report. In the next two years, an expansionary fiscal policy is likely to accelerate economic growth noticeably to 1.3% and 1.4%, respectively. This means that the institutes' forecast for this year and next remains roughly unchanged from the spring report. “The German economy is still on shaky ground,” says Dr Geraldine Dany-Knedlik, head of the Forecasting and Economic Policy Division at the German Institute for Economic Research (DIW Berlin). “It will recover noticeably in the next two years. However, given ongoing structural weaknesses, this momentum will not last.”
Oliver Holtemöller
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04.09.2025 • 26/2025
Recovery on shaky ground – tariffs dampen growth, but a change in fiscal policy is on the way
In late summer 2025, it is still unclear whether the German economy is on the road to recovery, as it has to cope with the dampening effect of higher US tariffs in the second half of the year. It is not until 2026 that fiscal policy stimulus measures, combined with low key interest rates, will probably lead to an economic upturn. According to the autumn forecast of the Halle Institute for Economic Research (IWH), production is then expected to increase by 0.8%, following 0.2% in 2025. Similar rates of expansion are also expected for East Germany. In June, the IWH economists were forecasting growth of 1.1% for 2026 and 0.4% for the current year.
Oliver Holtemöller
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Konjunktur aktuell: Erholung auf schwachen Füßen – Zölle bremsen, fiskalpolitischer Kurswechsel steht bevor
Konjunktur aktuell,
No. 3,
2025
Abstract
Trotz der Handelskonflikte zeigt sich die Weltwirtschaft bislang robust und dürfte weiter in mäßigem Tempo expandieren. Die Weltproduktion steigt im Jahr 2025 um 2,6% und im Jahr darauf um 2,4%. Ob sich die deutsche Wirtschaft auf Erholungskurs befindet, ist weiterhin nicht erkennbar, zumal sie in der zweiten Jahreshälfte den Dämpfer höherer US-Zölle zu verkraften hat. Erst für 2026 stehen die Chancen gut, dass finanzpolitische Impulse zusammen mit niedrigen Leitzinsen eine konjunkturelle Belebung bewirken. Das Bruttoinlandsprodukt dürfte dann um 0,8% zunehmen, nach 0,2% im Jahr 2025.
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Reshaping the Economy? Local Reallocation Effects of Place-Based Policies
Sarah Fritz, Catherine van der List
CESifo Working Papers,
July
2025
Abstract
We study the effects of place-based policies on aggregate productivity using administrative data on projects co-financed by the EU in Italy linked to balance sheet data. We exploit quasi-experimental variation in funding for a large place-based policy stemming from measurement error in regional GDP estimates. Results show that the policy likely decreases productivity. Decompositions reveal that aggregate declines are driven by reallocation of labor to low-productivity firms. Mechanism analysis using firm-level event studies reveals that negative reallocation effects are caused by high-productivity firms taking up the funds and subsequently becoming more liquidity constrained, leading to slowdowns in employment growth.
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12.06.2025 • 19/2025
Economic recovery in Germany – but structural problems and US trade policy weigh on the economy
The German economy has picked up somewhat in the first half of 2025. This was helped by the temporary increase in demand from the US in anticipation of higher tariffs. If the US does not escalate its trade conflicts further, production in Germany according to the summer forecast of the Halle Institute for Economic Research (IWH) is likely to increase a bit (by 0.4%) in 2025, after two years of decline. In March, the IWH economists were forecasting growth of 0.1% for the current year. Growth of 1.1% is forecast for the year 2026. Similar expansion rates are to be expected for East Germany.
Oliver Holtemöller
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