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Refereed essays Web of Science
Objective: As social norms and relationship dynamics evolve, it is important to examine how transitions from singlehood to partnership, cohabitation, and marriage relate to well-being Method: Using data from two large panel studies in the UK and Germany (1984–2019), we identified N = 27,459 individuals who reported being single and living alone at least once. Analyses focused on a subset (N = 1103; ...
In:
Journal of Personality
(2026), im Ersch. [online first: 2025-08-18]
| Usama EL-Awad, Robert Eves, Justin Hachenberger, Theresa M. Entringer, Robin Goodwin, Anu Realo, Sakari Lemola
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Refereed essays Web of Science
While Equity Crowdfunding (ECF) platforms are a virtual space for raising funds, geography remains relevant. To determine how location matters for entrepreneurs using equity crowdfunding (ECF), we analyze the spatial distribution of successful ECF campaigns and the spatial relationship between ECF campaigns and traditional investors, such as banks and venture capitalists (VCs). Using data from the ...
In:
Small Business Economics
65 (2025), 4, S. 2639–2661
| Torben Klarl, Alexander S. Kritikos, Knarik Poghosyan
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Refereed essays Web of Science
This study investigated how changing the mode of incentive administration between two panel waves, spaced six months apart, affected longitudinal survey response. A split-ballot incentive experiment was used to compare shifting from an unconditional pre-paid incentive mode in the first wave to a conditional post-paid mode in the second wave, versus consistently using a conditional post-paid mode across ...
In:
Survey Research Methods
19 (2025), 2, S. 223-239
| Jean Philippe Décieux, Sabine Zinn, Andreas Ette
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Video
[English subtitles, German language video] The Firms and Markets Department at DIW Berlin researches how market rules and their enforcement strengthen competition and the economy. The focus is on business decisions, consumer preferences, and the impact of policy interventions. Using modern methods, the team provides important insights for fair and efficient economic policy—from digitalization to...
19.08.2025| 100 Jahre DIW Berlin
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Refereed essays Web of Science
Background On their way to host countries, refugees are often exposed to severe adversity, including cumulative experiences of fraud, extortion, robbery, detention, and shipwrecks, as well as prolonged, life-threatening small boat crossings. However, little research has examined the long-term impact of such peri-migration stressors on subsequent stress and mental health after arrival. This study explored ...
In:
BMC Public Health
25 (2025), 2582, 15 S.
| Usama EL-Awad, Robert Eves, Justin Hachenberger, Kayvan Bozorgmehr, Theresa M. Entringer, Tobias Hecker, Oliver Razum, Odile Sauzet, Sakari Lemola
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Refereed essays Web of Science
The low degree of stock market participation (SMP) is one of the big puzzles in finance. Numerous determinants have been proposed. We put these determinants into a structure that is derived from a standard static portfolio model. Then we discuss arguments put forward regarding specific SMP determinants and the empirical evidence that has been provided. The focus of our survey is on the identification ...
In:
Journal of Economic Surveys
39 (2025), 3, S. 953-979
| Lukas Menkhoff, Jannis Westermann
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DIW Discussion Papers 2135 / 2025
Commitment to gender equality and diversity has long been a stated priority for large companies, and one visible way to signal this commitment is through gender-inclusive language. Public debates around such language use increasingly surface regarding companies’ communication with stakeholders, including employees, customers, and shareholders. In particular, the adoption of newer forms of gender-inclusive ...
2025| Carolin Müller-Spitzer, Samira Ochs, Virginia Sondergeld, Katharina Wrohlich
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Cluster-Seminar Öffentliche Finanzen und Lebenslagen
This study examines the impact of Statutory Retirement Age (SRA) reforms on individual behavior and welfare in the presence of policy uncertainty and misinformation. We develop a structural life-cycle model in which individuals are uncertain about the future evolution of the SRA and misinformed about its importance. We derive individuals’ expectations and information on the SRA from self-elicited...
23.07.2025| Bruno Veltri, Humboldt-Universität zu Berlin
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Berlin Macro Seminar
28.10.2025| Martin Bruns (University of East Anglia)
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Berlin Macro Seminar
11.11.2025| Matthias Kalkuhl (Potsdam Institute for Climate Impact Research - PIK)