Individualism and the Formation of Human Capital
Katharina Hartinger, Sven Resnjanskij, Jens Ruhose, Simon Wiederhold
Journal of the European Economic Association,
Vol. 24 (3),
2026
Abstract
More individualistic countries experience higher economic growth. We provide evidence for a human-capital-based explanation of the growth effects of individualism. Using data from the largest international adult skill assessment, we establish that individualism shapes human capital formation. We identify the effects of individualism by exploiting variation between migrants at the origin-country, origin-language, and person level. Migrants from more individualistic cultures have higher cognitive skills and larger skill gains over time. They also invest more in their skills over the life cycle, as they acquire more years of schooling and are more likely to participate in adult education activities. Individualism is more important in explaining adult skill formation than any other cultural trait that previous literature has emphasized. In the labor market, more individualistic migrants earn higher wages and are less often unemployed. We show that our results cannot be explained by selective migration or omitted origin-country variables.
Read article
The Single Supervisory Mechanism, Loan Growth vs. Volatility, and Granular Risk Spillovers
Helena Baum, Melina Ludolph, Lena Tonzer
RSC Working Paper,
No. 17,
2026
Abstract
We analyze how the establishment of the Single Supervisory Mechanism (SSM) relates to patterns in banks’ lending activities, risk outcomes, and granular risks within the banking system. Using data on euro area banks from 2010 to 2021, we estimate idiosyncratic shocks to banks’ loan growth to construct a measure of loan growth volatility and to compute the “Banking Granular Residual.” Banks under SSM supervision exhibit lower volatility in loan portfolio growth, indicating more stable lending dynamics. Furthermore, the implementation of the SSM is associated with positive spillover effects on non-SSM banks’ lending and a weaker relationship between granular banking shocks and economic growth.
Read article
Klimaziele und Wachstum vereinbaren: Bedeutung der Energieproduktivität
Oliver Holtemöller, Christoph Schult
Wirtschaftsdienst,
Vol. 106 (5),
2026
Abstract
Die Energieproduktivität in Deutschland ist in den vergangenen Jahren gestiegen. Inwiefern lässt sich daraus auf eine Transformation des Energiesystems und der Produktion schließen? Der Beitrag zeigt, dass der Anstieg der Energieproduktivität nur begrenzt auf Effizienzfortschritte innerhalb von Sektoren zurückzuführen ist, sondern auch durch Strukturwandel und den Rückgang energieintensiver Produktion getrieben wird. Eine Projektion des Endenergieverbrauchs bis 2030 deutet darauf hin, dass die energiepolitischen Zielwerte bei schwachem Wirtschaftswachstum erreichbar sind. Bei höherem Wachstum würden sie jedoch verfehlt. Daraus ergibt sich ein Zielkonflikt zwischen Energieverbrauchsreduktion und wirtschaftlicher Dynamik; es braucht zusätzliche Effizienzgewinne oder technologische Innovationen um ihn aufzulösen.
Read article
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.
Read article
01.04.2026 • 10/2026
Economic growth in East Germany slightly higher than in the West – Implications of the Joint Economic Forecast Spring 2026 and of new data for the East German economy
In 2025, the East German economy expanded by 0.4%, somewhat more than Germany as a whole (0.2%). For 2026, the Halle Institute for Economic Research (IWH) expects growth of 0.7% for East Germany (Germany: 0.6%). The unemployment rate is likely to amount to 7.9% in the current year, after 7.8% in 2025.
Oliver Holtemöller
Read
01.04.2026 • 9/2026
Energy price shock dampens recovery – inflation rises
Although the leading economic research institutes consider the German economy to be in a recovery phase following a downturn lasting several years, they nevertheless expect only a moderate increase in gross domestic product of 0.6% for 2026 and 0.9% for 2027. “The energy price shock triggered by the Iran war is hitting the recovery hard, but at the same time expansionary fiscal policy is bolstering the domestic economy and preventing a stronger slide,” says Timo Wollmershäuser, Head of Forecasts at the ifo Institute. The institutes estimate that the inflation rate will rise to an average of 2.8% in 2026 and 2.9% in 2027.
Oliver Holtemöller
Read
Energiepreisschock überlagert Fiskalimpuls – Wachstumskräfte versiegen
Dienstleistungsauftrag des Bundesministeriums für Wirtschaft und Energie,
No. 1,
2026
Abstract
Nach einem mehrjährigen Abschwung hat im Verlauf des vergangenen Jahres eine Erholung eingesetzt. Während die exportorientierte Industrie angesichts weiter abnehmender Wettbewerbsfähigkeit, hoher geopolitischer Unsicherheit und fortbestehender handelspolitischer Belastungen kaum Tritt fasste, wurde die Erholung maßgeblich von der Binnenwirtschaft getragen. Der Energiepreisschock, der durch den Iran-Krieg ausgelöst wurde, dämpft die Erholung, dürfte sie aber nicht vollständig zum Erliegen bringen. Dafür sorgt der erheblich expansive Kurs der Finanzpolitik, der vor allem Unternehmen der Verteidigungsindustrie und des Tiefbaus stützt. Im Großteil des Verarbeitenden Gewerbes bleibt die Lage jedoch verhalten.
Das Bruttoinlandsprodukt dürfte in diesem Jahr um 0,6% und im Jahr 2027 um 0,9% zunehmen, nachdem die Wirtschaftsleistung im Vorjahr mit einem Anstieg von 0,2% kaum mehr als stagniert hat. Im Vergleich zum Herbstgutachten 2025 haben die Institute damit ihre Prognose für das laufende Jahr deutlich um 0,6 Prozentpunkte und für das kommende Jahr um 0,4 Prozentpunkte nach unten korrigiert.
Read article
12.03.2026 • 8/2026
Oil price shock threatens recovery in Germany
Globally rising energy prices in the wake of the new Gulf War are clouding the outlook for the German economy. Nevertheless, increased public expenditure is expected to support economic activity both this year and next. According to the spring forecast of the Halle Institute for Economic Research (IWH), output is projected to grow by 0.7% in 2026 and by 1.0% in 2027. We expect similar rates of expansion for East Germany. In December, the IWH economists had predicted growth of 1.0% for both 2026 and 2027.
Oliver Holtemöller
Read
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.
Read article
Fiscal Expansion and Households’ Income Inequality Expectations: A Survey Experiment
Melina Ludolph, Giang Nghiem, Lena Tonzer
Abstract
We study how individuals’ views on current and future levels of income inequality change during periods of expansionary fiscal policy. In a randomized controlled trial (RCT), we provide information on fiscal expansion to a representative sample of the German population. Our findings reveal that combining a fact-based (numerical) information treatment with a narrative treatment about fiscal expansion plans reduces inequality expectations among respondents who are ex-ante dissatisfied with the government’s economic policy. These effects are more pronounced among respondents without a college degree or with low political interest, highlighting the importance of narrative information for individuals who are likely to benefit most from it. We explore potential mechanisms by examining revisions in macro- and micro-level assessments of future economic conditions and find that respondents primarily update their expectations regarding economic growth and individual layoff risk.
Read article