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How many people are living in a forced marriage in Germany? A Network Scale-Up approach to estimate hidden human rights abuse

Forced marriage is a critical human rights violation. Challenges associated with estimating its prevalence hamper informed policy making and effective allocation of resources for victim support. This study employs a high-quality online access panel and the Network Scale-Up Method (NSUM) to estimate the prevalence of forced marriages in Germany. Using aggregated relational data and Bayesian models,...

DIW Women Executives Barometer: Method Report and Codebook for the Waves 2015-2026

In the annual DIW Women Executives Barometer, we document the share of women on the executive and supervisory boards of the largest companies in Germany. We separately analyse different groups of companies, among which there are the 200 companies with the highest turnover in Germany outside the financial sector (top 200 companies), all companies listed in the German stock index DAX (DAX companies) ...

Project meeting Wärme-ZIEL

The implementation of municipal heat planning was the focus of the semi-annual meeting of the "Wärme-ZIEL" research project in Reppenstedt near Lüneburg on 5 June 2026. Representatives from science, municipalities and the energy industry discussed current challenges of the heating transition and discussed the next steps in the project. To kick things off, Claudia Kemfert gave an overview of the current ...

Gökhan Ider has successfully defended his dissertation

Gökhan Ider, Research Associate in the Macroeconomics Department, successfully defended his dissertation entitled “The Conduct and Transmission of Macroeconomic Policy. Essays in Monetary, Fiscal and Financial Stability Policy” on June 19, 2026. He was supervised by Alexander Kriwoluzky and Malte Rieth. Congratulations!

Comparing Panel Retention among Ukrainian and Other Refugees in a German Probability-Based Panel: Evidence from a Decomposition Analysis

Despite the rise in global refugee migration, probability panels surveying refugees remain rare. The German IAB-BAMF-SOEP Survey of Refugees, conducted annually since 2016, provides valuable panel data for research. In 2023, following Russia’s invasion of Ukraine, a sample of Ukrainian refugees was added, along with a refreshment sample of refugees from other countries. This paper examines household-, ...

Diffusion of Cumulative Advantage? How Wealth and Health Trajectories Co-Evolve Across the Life Course among Older Adults

Objectives Cumulative advantage is a central concept in life course research. Prior research has primarily focused on one outcome domain, overlooking the possibility that cumulative advantage could extend into other domains–what we refer to as diffusion of cumulative advantage. We build on and extend cumulative inequality theory to conceptualize diffusion and apply it to wealth and health, two domains ...

Steuersenkungen: Eigentor für die arbeitende Mitte?

Introducing Open Data Format: A Platform-Independent, Non-Proprietary, Metadata-Enriched, Multilingual Data Format for Tabular Data

This paper introduces the Open Data Format (ODF), a non-proprietary, metadata-enriched, and zipcompressed data format for tabular data alongside statistical software packages. It embeds structured, multilingual metadata directly within the data file, using the well-established DDI-Codebook standard (DDI Alliance, 2014), and enables access to both data and documentation within common statistical environments. ...

From first-mover risk to late-mover risk in the steel transition

The project will analyze how to deploy the first wave of near-zero emission primary steel plants, leading to the point where industry perceptions shift to considering late mover risk in the transition more dangerous than first-mover risk. We will identify unilateral policy approaches that avoid putting clean primary steel producers at a disadvantage in international trade, and plurilateral...

DIW Economic Outlook Summer 2026

Energy price shock slows German economy— Global growth remains moderate German Economy Global Economy Links and Downloads Energy price shock triggered by the Iran War stalls the nascent recovery of the German economy—technical recession expected around mid-year Deep downturn comparable to 2022/23 remains unlikely—shock is smaller, energy supply remains secure, and expansionary fiscal policy provides ...