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The gap between the rich and poor states is widening more and more

Productivity gap has nearly disappeared in rural regions

Fiscal Capacity of German Federal States: East-West Gap Narrows, but Rich-Poor Divide Grows

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 ...

Productivity: East-West Gap Replaced by Urban-Rural Gap

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 ...

SOEPcampus@DIW Berlin 2025

On November 17 and 18, 2025, we are organizing a two-day workshop on the Socio-Economic Panel (SOEP) at DIW Berlin. In addition to presentations on the composition, data structure, sampling design, and weighting strategy, hands-on sessions will offer a practical approach to the data and its potential. The workshop is aimed at researchers at all qualification levels who want to work with SOEP data...

Learn to use the SOEP over lunch

The German Socio-Economic Panel Study is a representative panel study for the German population, collecting data on a broad variety of topics of everyday life, including general well-being, household composition, educational aspirations and educational status, income and occupational biographies, leisure time activities, housing, health, political orientation and more. With its long running panel...

Environmentally-Responsible Households: Irresponsible Corporate Lobbying

How do firms respond to greener household preferences? We construct a novel index of environmental willingness to act on the state-quarter level based on Google Trends search data. Relating the index to firm-level information on the U.S. auto- motive sector from 2006 to 2019, we find ambiguous results. On average, firms innovate more in electric, hydrogen, and hybrid (clean) technologies and reduce ...

Robin Sogalla has successfully defended his dissertation

On October 1, 2025, Robin Sogalla successfully completed his dissertation entitled „International Trade and Climate Policy: The Role of Firm Heterogeneity“ with summa cum laude at the Technische Universität Berlin. The dissertation was submitted and successfully defended by Robin as part of the doctoral programme in economics. The committee consisted of Prof. Tomaso Duso (DIW Berlin and TU Berlin), ...

The Persuasiveness of Different Sources of Information on the Decision to Vaccinate: A Cross-Sectional Study in Germany During the Pandemic at the Turn of the Year 2021/2022

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 ...

Composition of Core Modules and Item Allocation in Split Questionnaire Designs: Impact on Estimates from Imputed Data

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, ...