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Refereed essays Web of Science
Our article investigates the impact of vertical integration (without foreclosure) on innovation. We compare cases where either (i) two manufacturers or (ii) a manufacturer and a vertically integrated retailer invest. Then, the independent manufacturer(s) and the retailer bargain over nonlinear contracts before selling to consumers. We show that vertical integration always increases the incentives to ...
In:
Journal of Economics and Management Strategy
(2026), im Ersch. [online first: 2025-08-12]
| Claire Chambolle, Morgane Guignard
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Refereed essays Web of Science
Chlorine is an essential feedstock for polymers and pharmaceuticals, with annual production exceeding 100 Mt. Nearly all Cl2 is obtained by chlor–alkali electrolysis, which consumes about 2.58 MWh of electricity per tonne. Renewable energies such as wind and solar would lower CO2 emissions, but electrolysers would then have to adopt to fluctuating, renewable energies while downstream processes still ...
In:
Green Chemistry
27 (2025), 33, S. 9874-9881
| Merlin Kleoff, Franziska Klaucke, Patrick Voßnacker, Rainer Weber, Karsten Neuhoff, Sebastian Riedel
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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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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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Refereed essays Web of Science
Due to recent conflicts and humanitarian issues, millions of people have sought asylum in countries in Europe. The influx of asylum seekers has sparked debates about the impacts of such migratory flows on resident populations. We study how the recent migration of these forcibly displaced people into Europe affects the mental health of the receiving country residents in Switzerland and Germany. We exploit ...
In:
Journal of Development Economics
178 (2025), 103579, 24 S.
| Prashant Bharadwaj, Daniel Graeber, Stephanie Khoury, Christian P.R. Schmid
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Weitere referierte Aufsätze
Hochschulen in Deutschland bieten zunehmend Orientierungsstudienprogramme an, um Studieninteressierte bei ihrer Studienwahl zu unterstützen. Wen Hochschulen mit solchen Programmen erreichen, ist bislang jedoch weitgehend unklar. Unser Beitrag vergleicht die Ausgangslagen Studierender eines Orientierungsstudiums (N = 512) an einer deutschen Universität mit denen regulärer Bachelorstudierender zu Studienbeginn ...
In:
Zeitschrift für empirische Hochschulforschung
9 (2025), 1, S. 5-27
| Stephan Sielschott, Charlotte Bröder, Emilija Meier-Faust, Rainer Watermann
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Refereed essays Web of Science
Residential electricity consumers equipped with photovoltaic (PV) systems and battery storage, also referred to as solar prosumers, are transforming electricity markets. While previous research has dealt with various aspects of solar prosumage, dedicated analyses of their interactions with the transmission grid under varying tariff designs are sparse. We explore the influence of different pricing regimes ...
In:
Smart Energy
19 (2025), 100193, 11 S.
| Dana Kirchem, Mario Kendziorski, Enno Wiebrow, Wolf-Peter Schill, Claudia Kemfert, Christian von Hirschhausen
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Refereed essays Web of Science
Many governments consider new nuclear power plants to promote decarbonization. On the one hand, dispatchable nuclear plants can complement fluctuating generation from wind and PV. On the other hand, escalating construction costs and times raise economic concerns. This paper investigates the economic threshold at which nuclear plants are an efficient decarbonization option. Building on an extensive ...
In:
Energy Strategy Reviews
60 (2025), 101782, 22 S.
| Leonard Göke, Alexander Wimmers, Christian von Hirschhausen
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Refereed essays Web of Science
Forced migration has intensified in the 21st century, driven by conflicts, persecution, and political instability in regions such as the Middle East, Afghanistan, the Horn of Africa, South-East Asia, Latin America and, most recently, Ukraine. Germany has become a primary destination for refugees within the European Union and one of the largest among the OECD countries. The IAB-BAMF-SOEP Refugee Survey, ...
In:
European Sociological Review
42 (2026), 1, S. 146–163
| Herbert Brücker, Yuliya Kosyakova, Nina Rother, Sabine Zinn, Elisabeth Liebau, Wenke Gider, Silvia Schwanhäuser, Manuel Siegert
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Refereed essays Web of Science
This paper outlines two studies on education bias in German probability-based surveys. Study 1 reviews data from 67 surveys across 19 survey programs conducted in Germany from 2000 to 2023. We found a consistent underrepresentation of individuals with a low level of formal education. We also found that the transition to self-administered modes due to rising survey costs may exacerbate this bias in ...
In:
International Journal of Social Research Methodology
(2026), im Ersch. [online first: 2025-06-11]
| Annika Stein, Tobias Gummer, Elias Naumann, Björn Rohr, Henning Silber, Roman Auriga, Michael Bergmann, Arne Bethmann, Michael Blohm, Carina Cornesse, Pablo Christmann, Mustafa Coban, Jean Philippe Décieux, Britta Gauly, Caroline Hahn, Susanne Helmschrott, Oshrat Hochman, Johannes Lemcke, Dörte Naber, Steffen Pötzschke, Joss Roßmann, Jan-Lucas Schanze, Tobias Schmidt, Silke L. Schneider, Heike Spangenberg, Tobias Rettig, Mark Trappmann, Michael Weinhardt, Bernd Weiß
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Refereed essays Web of Science
Using linked data from the Millennium Cohort Study and National Pupil Database (N = 8,139), this study examined how the timing of school absences (years 1 to 11 between 2006 and 2017) affects achievement at the end of compulsory schooling in England. Absences during any school year are harmful to student achievement. However, absences in years 1 and 6 (the final year of primary school), and between ...
In:
American Educational Research Journal
62 (2025), 5, S. 872-908
| Jascha Dräger, Markus Klein, Edward M. Sosu
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Refereed essays Web of Science
We propose a novel method to detect and disentangle moderate and severe health shocks in a general population survey based on a data-driven classification of sickness absences and hospitalizations. Both types of shocks are widespread with an annual incidence of about 1.7%, which rises steeply with age. We estimate the effects of both shocks on labor market outcomes and find that severe shocks have ...
In:
Labour Economics
96 (2025), 102747, 13 S.
| Mattis Beckmannshagen, Johannes Koenig
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Refereed essays Web of Science
In conventional proxy VAR analysis, the shocks of interest are identified by external instruments. This is typically accomplished by considering the covariance of the instruments and the reduced-form residuals. Alternatively, the instruments may be internalized by augmenting the VAR process by the instruments or proxies. These alternative identification methods are compared and it is shown that the ...
In:
Journal of Economic Dynamics & Control
177 (2025), 105131, 15 S.
| Martin Bruns, Helmut Lütkepohl
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Refereed essays Web of Science
Existing research has demonstrated that wealthier individuals differ in family formation. Potential explanations draw on wealth’s use and symbolic value as well as the relative economic bar of family formation. This study examines the relationship between wealth and three family formation events in Germany: first cohabitation, marriage, and birth. Data from the German Socio-Economic Panel Study (2002–2017) ...
In:
European Journal of Population
41 (2025), 1, Art. 16, 24 S.
| Philipp M. Lersch
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Refereed essays Web of Science
We employ a control function methodology, complemented by various identification strategies, to causally estimate the heterogeneous effects of broadband availability on firms’ total factor productivity (TFP) across 46 two-digit manufacturing and service industries in Germany from 2010 to 2015. Throughout this period, the availability of broadband, defined as access to transmission rates of at least ...
In:
Journal of Economic Behavior & Organization
237 (2025), 107133, 18 S.
| Tomaso Duso, Mattia Nardotto, Alexander Schiersch
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Refereed essays Web of Science
Individuals vary considerably in how much they earn during their lifetimes. This study examines the role of the tax‐and‐transfer system in mitigating such inequalities, which could otherwise lead to disparities in living standards. Utilizing a life‐cycle model, we determine that the tax‐and‐transfer system offsets 45% of lifetime earnings inequality attributed to differences in productive abilities ...
In:
Quantitative Economics
16 (2025), 2, S. 565–613
| Peter Haan, Daniel Kemptner, Victoria Prowse, Maximilian Schaller
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Weitere referierte Aufsätze
We show that in a New Keynesian model with household heterogeneity, fiscal policy can be a perfect substitute for monetary policy: three simple conditions for consumption taxes, labor taxes, and the government debt level are sufficient to induce the same consumption and labor supply of each household and, thus, the same allocation as interest rate policies. When monetary policy is constrained by a ...
In:
Journal of Political Economy Macroeconomics
1 (2023), 4, S. 633-664
| Hannah Magdalena Seidl, Fabian Seyrich
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Refereed essays Web of Science
Who makes it to the top? We use the leading socio-economic survey in Germany, supplemented by extensive data on the rich, to answer this question. We identify the key predictors for belonging to the top 1 percent of income, wealth, and both distributions jointly. Although we consider many, only a few traits matter: Entrepreneurship and self-employment in conjunction with a sizable inheritance of company ...
In:
The Review of Income and Wealth
71 (2025), 2, e70015, 19 S.
| Johannes König, Christian Schluter, Carsten Schröder
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Refereed essays Web of Science
Background: Populations experiencing precarity face heightened mental health inequities, especially during crises. In this regard, it is established that socio-economic status (SES) and social isolation are critical factors influencing mental health outcomes, which interact syndemically. Understanding their interrelated mechanisms is crucial for developing effective public health strategies to support ...
In:
SSM - Population Health
31 (2025), 101822, 16 S.
| Victoria Touzel, Doreen Reifegerste, Kayvan Bozorgmehr, Louise Biddle