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Refereed essays Web of Science
Health information about vaccinations is communicated via various sources of information and is crucial for vaccination decisions. Information sources such as interpersonal sources, traditional print and digital media as well as social media offer information about the risks and benefits of vaccination. During health crises such as the COVID-19 pandemic was, some information sources provide hanging ...
In:
PloS one
20 (2025), 9, e0333268., 17 S.
| Susanne Jordan, Sarah Jane Böttger, Sabine Zinn
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Refereed essays Web of Science
An increasing number of social science surveys use split questionnaire designs to reduce questionnaire length, presenting only a subset of several questionnaire modules to each respondent while leaving out others. This approach results in large amounts of planned missing data that necessitates imputation. Research shows that imputation is most effective when each module covers various topics. Yet, ...
In:
International Journal of Social Research Methodology
(2026), im Ersch. [online first:2025-09-29]
| Julian B. Axenfeld, Christian Bruch, Christof Wolf
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Refereed essays Web of Science
This paper explores the presence of an environmental, social, and governance (ESG) premium for firms operating in the energy, utilities, and basic materials sectors. Specifically, we examine the influence of ESG performance on firms’ cost of capital in both debt and equity markets. We apply a measure of the ex ante implied cost of equity and the cost of debt to a global sample of over 24,000 firm-year ...
In:
Utilities Policy
97 (2025), 102016, 15 S.
| Sindre Wilberg, Vibeke Kjellevoll, Franziska Holz, Anne Neumann
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Infographic
01.10.2025
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Infographic
01.10.2025
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DIW Weekly Report 40 / 2025
Even now, 35 years after German unification, the economic power and fiscal capacity of the eastern German federal states remain below average. In Germany’s system of fiscal federalism, this leads to substantial financial transfers, a fact that repeatedly triggers political debate. Thereby, the low tax revenue of the economically weak states is also a consequence of the tax system—and by no means a ...
2025| Kristina van Deuverden
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DIW Weekly Report 40 / 2025
In 1991, the average labor productivity of the then-new federal states (plus West Berlin) only reached nearly half of the total national productivity level. Since then, the average labor productivity of these states has climbed up to nearly 90 percent. However, the ranking of the individual states has barely changed: Hamburg and the southern German states are still at the top, while most eastern German ...
2025| Martin Gornig
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SOEP Brown Bag Seminar
Many high-income economies strive to integrate recently immigrated refugees and asylum-seekers into their labor markets. We contribute to the discussion of relevant policy tools and use rich survey data that are matched to precise administrative records on refugee immigrants to Germany. We study the impact of occupational recognition decisions on refugee outcomes. Applying a difference-in...
08.10.2025| Regina T. Riphahn, FAU Erlangen-Nürnberg
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SOEP Brown Bag Seminar
This paper investigates the long-run consequences of a later school entry for personality traits. For identification, we exploit the statutory cutoff rules for school enrollment in Germany within a regression discontinuity design. We find that relatively older school starters have persistently lower levels of neuroticism in adulthood. This effect is entirely driven by women, which has important...
15.10.2025| Kamila Cygan-Rehm, TU Dresden
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Refereed essays Web of Science
Amid the Ukrainian displacement crisis, private hosting of refugees in Europe has surged, yet its impact on integration remains understudied. This research examines the short- to medium-term effects of private hosting on Ukrainian refugee integration in Germany. Using data from one of the largest non-profit platforms that matches private hosts with refugees, we compare the multidimensional integration ...
In:
Nature Human Behaviour
9 (2025), S. 2249–2260
| Mathis Herpell, Moritz Marbach, Niklas Harder, Alexandra Orlova, Dominik Hangartner, Jens Hainmueller