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  • Refereed essays Web of Science

    Social Security and Retirement around the World: Lessons from a Long-Term Collaboration

    Declining labor force participation of older men throughout the 20th century and recent increases in participation have generated substantial interest in understanding the effect of public pensions on retirement. The National Bureau of Economic Research's International Social Security (ISS) Project, a long-term collaboration among researchers in a dozen developed countries, has explored this and related ...

    In: Journal of Pension Economics and Finance 24 (2024), S. 8-30 | Courtney Coile, David Wise, Axel Börsch-Supan, Jonathan Gruber, Kevin Milligan, Richard Woodbury, Michael Baker, James Banks, Luc Behaghel, Melika Ben Salem, Paul Bingley, Didier Blanchet, Richard Blundell, Michele Boldrín, Antoine Bozio, Agar Brugiavini, Tabea Bucher-Koenen, Raluca Elena Buia, Eve Caroli, Thierry Debrand, Arnaud Dellis, Raphaël Desmet, Klaas de Vos, Peter Diamond, Carl Emmerson, Irene Ferrari, Anne-Lore Fraikin, Mayu Fujii, Pilar García-Gómez, Sílvia Garcia-Mandicó, Nicolas Goll, Nabanita Datta Gupta, Sergi Jiménez-Martín, Per Johansson, Paul Johnson, Michael Jørgensen, Alain Jousten, Hendrik Jürges, Malene Kallestrup-Lamb, Adriaan Kalwij, Arie Kapteyn, Simone Kohnz, Lisa Laun, Mathieu Lefebvre, Ronan Mahieu, Giovanni Mastrobuoni, Costas Meghir, Akiko Oishi, Takashi Oshio, Mårten Palme, Giacomo Pasini, Peder Pedersen, Louis-Paul Pelé, Franco Peracchi, Sergio Perelman, Pierre Pestieau, Corinne Prost, Simon Rabaté, Johannes Rausch, Muriel Roger, Tammy Schirle, Reinhold Schnabel, Morten Schuth, Satoshi Shimizutani, Sarah Smith, Jean-Philippe Stijns, David Sturrock, Ingemar Svensson, Gemma Tetlow, Lars Thiel, Maxime Tô, Julie Tréguier, Emiko Usuii, Judit Vall-Castelló, Emmanuelle Walraet, Guglielmo Weber, Naohiro Yashiro
  • Refereed essays Web of Science

    Long-Term Effects of Equal Sharing: Evidence from Inheritance Rules for Land

    In: The Economic Journal 134 (2024), 664, | Charlotte Bartels, Simon Jäger, Natalie Obergruber
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    Einkommens- und Vermögensverteilung in Deutschland

    This article outlines income and wealth distribution trends in Germany since the 19th century, compared to other Westernindustrialised countries. We first discuss the evolution of aggregate wealth-to-income ratios. We then explore how the concentration ofincome and wealth among the top percentile evolved since the 19th century. For the period after 1990, we analyse the entire distributionsfrom top ...

    In: Wirtschaftsdienst 104 (2024), 7, S. 441-447 | Charlotte Bartels, Theresa Neef
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    Grüne Transformation in Deutschland – nur mit echter Energiewende ein ökologischer und ökonomischer Erfolg

    In order to achieve climate targets, a comprehensive energy transition is necessary in which nearly all energy comes from renewable sources. The switch to renewable energies is not only of enormous strategic importance in terms of climate protection. In combination with the technological innovations it triggers, renewable energy also creates the scope for climate-neutral growth.

    In: Wirtschaftsdienst 104 (2024), 5, S. 296–300 | Martin Gornig, Claudia Kemfert
  • Refereed essays Web of Science

    The Reputation Effect of Repeated Green-Bond Issuance and Its Impact on the Cost of Capital

    This study explores the effect of frequent green-bond issuance on a firm's financing costs. Using a sample of listed Swedish real estate companies issuing a total of 1074 bonds over the period from 2011 to 2021, difference-in-differences analyses and instrumental variable estimations are applied to identify the causal impact of frequent green-bond vis-à-vis frequent non-green-bond issuance on a firm's ...

    In: Business Strategy and the Environment (2025), im Ersch. [online first: 2024-12-23] | Aleksandar Petreski, Dorothea Schäfer, Andreas Stephan
  • Refereed essays Web of Science

    Reply on “Comments on ‘Uncertainties in Estimating Production Costs of Future Nuclear Technologies: A Model-Based Analysis of Small Modular Reactors’ [Energy 281 (2023) 128204]”

    This reply aims to address the points raised in an analysis provided in the comment entitled “Comments on ‘Uncertainties in estimating production costs of future nuclear technologies: A model-based analysis of small modular reactors’ [Energy 281 (2023) 128204]”, specifically on the used scaling coefficients and cost assumptions.

    In: Energy 313 (2024), 133828, 3 S. | Björn Steigerwald, Jens Weibezahn, Martin Slowik, Christian von Hirschhausen
  • Refereed essays Web of Science

    Who Opts Out? The Customisation of Marriage in the German Matrimonial Property Regime

    This study examines the prevalence of marital contracts across marriage cohorts (1990–2019) in Germany. We further investigate the characteristics of spouses who signed a marital contract. Using cross-sectional data from the German Family Panel (pairfam, 2018/19), we employ complementary log–log and multinomial logistic regression models to predict the prevalence and the type of marital contracts. ...

    In: European Journal of Population 38 (2022), 3, S. 353–375 | Theresa Nutz, Anika Nelles, Philipp M. Lersch
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    State of DDI Cloud

    As the DDI community continues to grow, an increasing number of repositories are providing their metadata in various DDI formats. However, the current landscape of DDI metadata standards usage is not well understood. Understanding this landscape is crucial as it helps identifying usage patterns, improve interoperability, and guide future developments. To address this research gap, we investigated the ...

    In: IASSIST Quarterly 48 (2024), 4, S. 1-15 | Knut Wenzig, Xiaoyao Han
  • Refereed essays Web of Science

    Mode Choice Inertia and Shock: Three Months of Almost Fare-Free Public Transport in Germany

    This study analyses travellers’ behavioural responses to two temporal measures implemented by the German government: the reduction in public transport prices, making it almost fare-free, and a decrease in fuel taxes to the minimum level permitted by European law. Based on a panel dataset of GPS-tracked trips collected before and during the price intervention from a representative sample of 276 individuals, ...

    In: Economics of Transportation 41 (2025), 100382, 10 S. | Maria Fernanda Guajardo Ortega, Heike Link
  • Refereed essays Web of Science

    How Many Brackets Should We Ask for to Derive Adequate Metric Information for Income and Wealth?

    This paper investigates how the number of brackets and the choice of upper cutoffs in grouped data affect the metric approximation of income and wealth. The literature currently lacks a definition of what should be considered too few brackets or too-low cut-offs. Using German survey data, we show that more than six (eight) brackets and an upper cut-off at the 95th (97th) percentile are sufficient to ...

    In: Survey Research Methods 18 (2024), 3, S. 251-261 | Maximilian Longmuir, Markus M. Grabka
  • Refereed essays Web of Science

    Immigration, Segregation, and Attitudes Toward Immigrants: A Longitudinal Multiscalar Analysis across Egohoods

    Evidence on how proximity to ethnic outgroups shapes attitudes toward immigration remains inconclusive. We suggest this may be driven, in part, by the fact that studies rarely account for the role of residential segregation. We argue that how the minority-share in an environment affects majority-group attitudes will depend on how segregated groups are from one another. To explore this, we undertake ...

    In: European Sociological Review (2025), im Ersch. [online first: 2024-11-29] | James Laurence, Jan Goebel
  • Refereed essays Web of Science

    Demand Response Within the Irish Wastewater Treatment Sector: Analysing Flexibility Potentials of the Aeration Process and Wastewater Pumping Within an Integrated Energy–Water System Model

    Significant amounts of electricity consumed in air and water pumping make wastewater treatment energy-intensive. This study investigates the potential power system benefits of load shifting within these pumping processes. As a case study, the Irish power system and wastewater sector are studied by using an integrated modelling approach. The results show that demand flexibility within the wastewater ...

    In: Applied Energy 381 (2025), 125128, 19 S. | Dana Kirchem, Recep Kaan Dereli, Muireann Á. Lynch, Eoin Casey
  • Refereed essays Web of Science

    Common Ownership and Market Entry: Evidence from the Pharmaceutical Industry

    In: American Economic Journal: Microeconomics (2025), im Ersch. | Jo Seldeslachts
  • Refereed essays Web of Science

    Long-Term Employment Effects of the Minimum Wage in Germany: New Data and Estimators

    We investigate the long-term effects of the introduction of the German minimum wage in 2015 and its subsequent increases on regional employment. Using comprehensive survey data, we are able to measure the regional bite of the minimum wage in 2014, just before its introduction, as well as in 2018, before it was raised substantially in several steps. The introduction mainly affected the labour market ...

    In: Labour Economics 92 (2024), 102648, 14 S. | Marco Caliendo, Rebecca Olthaus, Nico Pestel
  • Refereed essays Web of Science

    The Macro-Economic Effects of a European Deposit (Re-)Insurance Scheme

    Recent proposals for a European deposit insurance scheme (EDIS) favor a reinsurance framework. In this paper, we use a regime-switching open economy DSGE model with bank defaults to assess the relative efficiency of such a scheme. We find that reinsurance by EDIS is more effective in stabilizing real activity, credit, and welfare than a national fiscal backstop. We demonstrate that risk-weighted contributions ...

    In: Journal of Money, Credit and Banking (2025), im Ersch. [online first: 2024-12-02] | Marius Clemens, Stefan Gebauer, Tobias König
  • Refereed essays Web of Science

    Sovereign Haircuts: 200 Years of Creditor Losses

    We study sovereign external debt crises over the past 200 years, with a focus on creditor losses, or “haircuts.” Our sample covers 327 sovereign debt restructurings with external private creditors over 205 default spells since 1815. Creditor losses vary widely (from none to 100%), but the statistical distribution has remained remarkably stable over two centuries, with an average haircut of around 45 ...

    In: IMF Economic Review (2025), im Ersch. [online first: 2024-12-03] | Clemens M. Graf von Luckner, Josefin Meyer, Carmen M. Reinhart, Christoph Trebesch
  • Refereed essays Web of Science

    Kids or No Kids? Life Goals in One’s 20s Predict Midlife Trajectories of Well-Being

    For many people, parenthood constitutes a crucial part of a successful life. Yet, the number of adults who never have children is increasing and has prompted concerns about their well-being. Past research mostly focused on parents and rarely investigated factors that are theoretically meaningful for the well-being of adults without children. Our preregistered study uses a propensity-score matched design ...

    In: Psychology and Aging 39 (2024), 8, S. 897–914 | Laura Buchinger, Iris V. Wahring, Nilam Ram, Christiane A. Hoppmann, Jutta Heckhausen, Denis Gerstorf
  • Refereed essays Web of Science

    A Retrospective Study of State Aid Control in the German Broadband Market

    In: Journal of the European Economic Association (2025), im Ersch. | Tomaso Duso, Mattia Nardotto, Jo Seldeslachts
  • Refereed essays Web of Science

    Equilibrium Effects of Payroll Tax Reductions and Optimal Policy Design

    We quantify the unintended effects of a low-wage payroll tax reduction using an equilibrium search model featuring bargaining, worker and firm productivity heterogeneity, labor taxes, and a minimum wage. The decentralized economy is inefficient due to search externalities and labor market policies. We estimate the model using French data and find that a significant reduction in low-wage payroll taxes ...

    In: Labour Economics 91 (2024), 102646, 27 S. | Thomas Breda, Luke Haywood, Haomin Wang
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    An Economical Measure of Attitudes Towards Artificial Intelligence in Work, Healthcare, and Education (ATTARI-WHE)

    Artificial intelligence (AI) has profoundly transformed numerous facets of both private and professional life. Understanding how people evaluate AI is crucial for predicting its future adoption and addressing potential barriers. However, existing instruments measuring attitudes towards AI often focus on specific technologies or cross-domain evaluations, while domain-specific measurement instruments ...

    In: Computers in Human Behavior: Artificial Humans 3 (2024), 100106, 9 S. | Timo Gnambs, Jan-Philipp Stein, Markus Appel, Florian Griese, Sabine Zinn
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