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1479 results, from 101
  • Refereed essays Web of Science

    Multiple Imputation of Ordinal Missing Not at Random Data

    We introduce a selection model-based imputation approach to be used within the Fully Conditional Specification (FCS) framework for the Multiple Imputation (MI) of incomplete ordinal variables that are supposed to be Missing Not at Random (MNAR). Thereby, we generalise previous work on this topic which involved binary single-level and multilevel data to ordinal variables. We apply an ordered probit ...

    In: AStA Advances in Statistical Analysis 107 (2023), S. 671–692 | Angelina Hammon
  • Refereed essays Web of Science

    Competition, Formal Governance and Trust in Alliances: An Experimental Study

    We study the role of alliance governance in the behavior of partners in alliances with different degrees of competition. Using data from a lab experiment on 1,009 alliances and 31,662 partners' choices, we explore whether and how alliances succeed in different competitive scenarios, contingent on the use of formal governance mechanisms (termination clauses) and the number of partners in the alliance. ...

    In: Long Range Planning 55 (2022), 5, 102240, 18 S. | Giulia Solinas, Debrah Meloso, Albert Banal-Estañol, Jo Seldeslachts, Tobias Kretschmer
  • Refereed essays Web of Science

    The Early Bird Catches the Worm! Setting a Deadline for Online Panel Recruitment Incentives

    The literature on the effects of incentives in survey research is vast and covers a diversity of survey modes. The mode of probability-based online panels, however, is still young and so is research into how to best recruit sample units into the panel. This paper sheds light on the effectiveness of a specific type of incentive in this context: a monetary incentive that is paid conditionally upon panel ...

    In: Social Science Computer Review 41 (2023), 2, S. 370–389 | Sabine Friedel, Barbara Felderer, Ulrich Krieger, Carina Cornesse, Annelies G. Blom
  • Refereed essays Web of Science

    Measurement Equivalence in Probability and Nonprobability Online Panels

    Nonprobability online panels are commonly used in the social sciences as a fast and inexpensive way of collecting data in contrast to more expensive probability-based panels. Given their ubiquitous use in social science research, a great deal of research is being undertaken to assess the properties of nonprobability panels relative to probability ones. Much of this research focuses on selection bias, ...

    In: International Journal of Market Research 64 (2022), 4, S. 484–505 | Hafsteinn Einarsson, Joseph W. Sakshaug, Alexandru Cernat, Carina Cornesse, Annelies G. Blom
  • Refereed essays Web of Science

    Face Masks Increase Compliance with Physical Distancing Recommendations during the COVID‑19 Pandemic

    Governments across the world have implemented restrictive policies to slow the spread of COVID-19. Recommended face mask use has been a controversially discussed policy, among others, due to potential adverse effects on physical distancing. Using a randomized field experiment (N = 300), we show that individuals kept a significantly larger distance from someone wearing a face mask than from an unmasked ...

    In: Journal of the Economic Science Association 7 (2021), 2, S. 139–158 | Gyula Seres, Anna Helen Balleyer, Nicola Cerutti, Anastasia Danilov, Jana Friedrichsen, Yiming Liu, Müge Süer
  • Weitere externe Aufsätze

    Unsupervised Methods: Clustering Methods

    In: Uwe Engel, Anabel Quan-Haase, Sunny Xun Liu, Lars Lyberg (Eds.) , Handbook of Computational Social Science Vol 2
    London : Routledge
    S. 334-351
    | Johann Bacher, Andreas Pöge and Knut Wenzig
  • Refereed essays Web of Science

    Corona Monitoring Nationwide (RKI-SOEP-2): Seroepidemiological Study on the Spread of SARS-CoV-2 Across Germany

    SARS-CoV-2, the coronavirus, spread across Germany within just a short period of time. Seroepidemiological studies are able to estimate the proportion of the population with antibodies against SARS-CoV-2 infection (seroprevalence) as well as the level of undetected infections, which are not captured in official figures. In the seroepidemiological study Corona Monitoring Nationwide (RKI-SOEP-2), biospecimens ...

    In: Jahrbücher für Nationalökonomie und Statistik 243 (2023), 3-4, S. 431–449 | Susanne Bartig, Herbert Brücker, Hans Butschalowsky, Christian Danne, Antje Gößwald, Laura Goßner, Markus M. Grabka, Sebastian Haller, Doris Hess, Isabell Hey, Jens Hoebel, Susanne Jordan, Ulrike Kubisch, Wenke Niehues, Christina Poethko-Mueller, Maximilian Priem, Nina Rother, Lars Schaade, Angelika Schaffrath Rosario, Martin Schlaud, Manuel Siegert, Silke Stahlberg, Hans Walter Steinhauer, Kerstin Tanis, Sabrina Torregroza, Parvati Trübswetter, Jörg Wernitz, Lothar H. Wieler, Hendrik Wilking, Sabine Zinn
  • Refereed essays Web of Science

    Nationally Representative Results on SARS-CoV-2 Seroprevalence and Testing in Germany at the End of 2020

    Pre-vaccine SARS-CoV-2 seroprevalence data from Germany are scarce outside hotspots, and socioeconomic disparities remained largely unexplored. The nationwide representative RKI-SOEP study (15,122 participants, 18–99 years, 54% women) investigated seroprevalence and testing in a supplementary wave of the Socio-Economic-Panel conducted predominantly in October–November 2020. Self-collected oral-nasal ...

    In: Scientific Reports 12 (2022), 19492, 13 S. | Hannelore Neuhauser, Angelika Schaffrath Rosario, Hans Butschalowsky, Sebastian Haller, Jens Hoebel, Janine Michel, Andreas Nitsche, Christina Poethko-Müller, Franziska Prütz, Martin Schlaud, Hans Walter Steinhauer, Hendrik Wilking, Lothar H. Wieler, Lars Schaade, Stefan Liebig, Antje Gößwald, Markus M. Grabka, Sabine Zinn, Thomas Ziese
  • Refereed essays Web of Science

    Mentoring as a Grassroots Effort for Integrating Refugees – Evidence from a Randomised Field Experiment

    About 80 million people were displaced worldwide at the end of 2020. To support this highly vulnerable group, in recent years, local bottom-up initiatives proliferated to support refugee integration in hosting communities. This study examines a network intervention for refugees in collaboration with a social start-up whose mission is to match refugees and local volunteers to form friendships. We apply ...

    In: Journal of Ethnic and Migration Studies 48 (2022), 17, S. 4085-4105 | Philipp Jaschke, Lea-Maria Löbel, Magdalena Krieger, Nicolas Legewie, Martin Kroh, Jannes Jacobsen, Diana Schacht
  • Diskussionspapiere 2000 / 2022

    How Communication Makes the Difference between a Cartel and Tacit Collusion: A Machine Learning Approach

    This paper sheds new light on the role of communication for cartel formation. Using machine learning to evaluate free-form chat communication among firms in a laboratory experiment, we identify typical communication patterns for both explicit cartel formation and indirect attempts to collude tacitly. We document that firms are less likely to communicate explicitly about price fixing and more likely ...

    2022| Maximilian Andres, Lisa Bruttel, Jana Friedrichsen
1479 results, from 101
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