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  • Mikroökonomik : Eine Einführung

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  • Sovereign Default, Taxation, and the Underground Economy

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    This paper studies the dynamic interaction between sovereign default risk, taxation, and the underground economy. For a large sample of countries, we find that the size of the underground economy is positively correlated with sovereign debt and interest spreads. We rationalize these empirical regularities within a quantitative model of sovereign default that explicitly accounts for underground activities. We highlight a vicious circle: Higher sovereign risk premia tighten the endogenous borrowing constraint and force the government to raise taxes. Tax hikes, however, induce the private sector to invest less and to evade taxes by producing in the underground sector. Eventually, falling tax revenues force the government to either implement further tax hikes or to default. Our quantitative findings suggest that the underground economy fosters sovereign default risk and deepens debt crises.

  • Sembill, Detlef; Kärner, Tobias (2020): Emotionen sind Macht : Analoge und digitale Rhythmen in der Fortschrittsdebatte der beruflichen Lehrpersonenbildung Berufs- und Wirtschaftspädagogik online (bwp@). Universität Hamburg, Institut für Berufs- und Wirtschaftspädagogik. 2020(Profil 6). eISSN 1618-8543

    Emotionen sind Macht : Analoge und digitale Rhythmen in der Fortschrittsdebatte der beruflichen Lehrpersonenbildung

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    Emotionen sind Macht wendet sich gegen das Diktum Wissen ist Macht und das rationalistische Credo Ich denke, also bin ich. Diese Überzeugungen dienten in der beginnenden Neuzeit und der Aufklärung der Loslösung aus der Umklammerung der mittelalterlichen Scholastik und der christlich-stoischen Ethik. Sind sie aber auch zukunftsfähig für das 21. Jahrhundert? Die Konzentration auf kognitive Lern­prozesse in einer Wissensgesellschaft, allenfalls durch massive Digitalisierungsbemühungen angerei­chert, scheint immer noch das Maß der Dinge. Das sollte befremden, denn seit ca. 140 Jahren – mit einer spezifischen Dekade des Gehirns in den 1990er Jahren – wird Affekten und Emotionen in der Sin­nesphysiologie im Übergang zur Wahrnehmungspsychologie eine funktionale Bedeutung in der Bewer­tung von Sinnesreizen zum Konstituieren von Informationen als spezifischer Evolutionsvorteil zugestan­den. Erst aus bewerteten Informationen generiert sich Wissen.

    Dieses Befremden mündet in den Verdacht, dass Emotionen in der Entwicklung von Gesellschaftsfor­men bis heute eine andere, eine ab- und ausgrenzende Rolle in der Konstituierung und Aufrechterhaltung von Machtverhältnissen spielen und ein Teil unseres sozio-kulturellen Erbes, den sozialen Schichten, sind. Das Aufbrechen einer emotionalen Oben-Unten-Musterprägung eröffnet aber auch die Chance, konstituierende Strukturen einer Lerngesellschaft als menschenwürdige Leistungsgesellschaft zu benen­nen. Um solche argumentativ zu stützen, konfrontieren wir die zuvor analysierten Musterprägungen mit Ergebnissen evidenzbasierter neurowissenschaftlich orientierter Lehr-Lernforschung.

  • Schwerdt, Guido; Wiederhold, Simon; Murray, T. Scott (2020): Literacy and Growth : New Evidence from PIAAC

    Literacy and Growth : New Evidence from PIAAC

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    Expanded international data from the PIAAC survey of adult skills allow us to replicate the IALSbased analysis by Coulombe, Tremblay and Marchand (2004) as well as Coulombe and Tremblay (2006) based on more recent and more comprehensive data on the literacy skills of the adult population. Results from panel estimations over the period 1970-2010 suggest that literacy skills have become an even more important determinant of economic growth than was suggested by the IALS analysis covering the period 1960-1995. Our estimates imply long-run elasticities of GDP per capita with respect to literacy of about 3. This means that in the long run a one-percent increase in literacy translates into a three-percent increase in GDP per capita. Short-run elasticities are also substantial. The association between labor productivity and literacy is equally strong. This suggests that the effect of literacy on living standards goes beyond its effect on unemployment and participation rates A closer inspection of the data additionally reveals some important heterogeneities: Investment in the human capital of women appears to have a much stronger effect on subsequent growth than investment in the human capital of men. Our results also suggest that underinvestment in human capital hampers growth by more than developing highly talented individuals stimulates it. Specifically, the proportion of adults with low levels of literacy skill – Levels 1 and 2 – appears to have a much larger impact on growth rates than the proportion of adults with Level 4 and 5 literacy proficiency. Thus, policies that serve to reduce the proportion of low skilled adults would likely yield higher returns than those that serve to increase the proportion of high skilled adults.

  • Piopiunik, Marc; Schwerdt, Guido; Simon, Lisa; Woessmann, Ludger (2020): Skills, signals, and employability : An experimental investigation European Economic Review. Elsevier. 2020, 123, 103374. ISSN 0014-2921. eISSN 1873-572X. Available under: doi: 10.1016/j.euroecorev.2020.103374

    Skills, signals, and employability : An experimental investigation

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    Because most skills of labor-market entrants are not directly observed by employers, individuals acquire skill signals. To study which signals are valued by employers, we randomize several skill signals on resumes of fictitious applicants among which we ask a large representative sample of German human-resource managers to choose. We find that signals in both studied domains – cognitive and social skills – have significant effects on being invited for a job interview. Consistent with their relevance, expectedness, and credibility, different signals are effective for apprenticeship applicants and college graduates. While GPAs and social skills are significant for both genders, females are particularly rewarded for IT and language skills. Older HR managers value school grades less and other signals more. HR managers in larger firms value college grades more.

  • Friederichs, Edgar; Kärner, Tobias; Friederichs, Katja M.; Lehmeier, Stefan (2020): Too much of a good thing? : Curvilinear relationships between self-calming and autonomic responses in paediatric patients Medical Hypotheses. Elsevier. 2020, 137, 109536. ISSN 0306-9877. eISSN 1532-2777. Available under: doi: 10.1016/j.mehy.2019.109536

    Too much of a good thing? : Curvilinear relationships between self-calming and autonomic responses in paediatric patients

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    Based on the theory of self-regulation and the polyvagal theory, we hypothesise a curvilinear relationship between self-regulation and autonomic responses. We report findings of a pilot study that provides support for the proposed hypothesis. For some of the observed cases, the quadratic polynomial regression models the data better than the linear regression model, indicating curvilinear relationships between self-regulation and indicators of autonomic response. Consequences of the hypothesis and its relevance for therapeutic interventions supporting the patients’ self-calming system are discussed.

  • Hochholdinger, Sabine (2020): Evidenzbasiertes Personalmanagement WIRTZ, Markus Antonius, ed.. Dorsch - Lexikon der Psychologie. 19., überarbeitete Auflage. Bern: Hogrefe, 2020, pp. 1325-1326. ISBN 978-3-456-85914-9

    Evidenzbasiertes Personalmanagement

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  • Kleinert, Tobias; Schiller, Bastian; Fischbacher, Urs; Grigutsch, Laura-Anne; Koranyi, Nicolas; Rothermund, Klaus; Heinrichs, Markus (2020): The Trust Game for Couples (TGC) : A new standardized paradigm to assess trust in romantic relationships PLoS one. Public Library of Science (PLoS). 2020, 15(3), e0230776. eISSN 1932-6203. Available under: doi: 10.1371/journal.pone.0230776

    The Trust Game for Couples (TGC) : A new standardized paradigm to assess trust in romantic relationships

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    Trust between couples is a prerequisite for stable and satisfactory romantic relationships. However, there has been no valid research tool to assess partner-specific trust behavior including costly investments in the trustworthiness of the romantic partner. We here present a comprehensive validation of the newly developed Trust Game for Couples (TGC) by means of various self-report and implicit relationship-related measures. The TGC operationalizes trust by measuring an individual’s willingness to invest his or her own financial resources in pro-relationship attitudes of their romantic partner (collected by dichotomous responses to relationship-relevant items, e.g., answering yes to “I am absolutely sure that I love my partner”). Thirty-five healthy couples between 20 and 34 years completed the TGC in an interactive (both partners present), but anonymous setting (no information on the partner’s responses revealed). Trust, as measured by the TGC, correlates positively with self-reported trust, satisfaction, and felt closeness in the relationship, but not with general interpersonal trust, confirming both its convergent and discriminant validity. In addition to explicit criteria for construct validity, implicit measures of partner valence and confidence explained variance in the TGC, demonstrating that it constitutes an economical measure of implicit and explicit ingredients of trust between couples. In sum, the TGC provides a novel, specific behavioral tool for a sensitive assessment of trust in dyadic relationships with potential for numerous research fields.

  • Kärner, Tobias; Höning, Jana (2020): Teachers' experienced classroom demands and autonomic stress reactions : Results of a pilot study PARÍS, Georgina, ed. and others. Learning & professional development : From innovative research to innovative interventions : Book of abstracts of the EARLI SIG14 2020 Conference. 2020, pp. 131. Available under: doi: 10.6084/m9.figshare.12515342

    Teachers' experienced classroom demands and autonomic stress reactions : Results of a pilot study

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    In order to examine relationships between teachers\' experienced classroom demands and autonomic stress reactions, we report results of a pilot study. Based on an integrative literature review we first identify and describe the following classroom demands: (1) missing rest periods, (2) time pressure, (3) pressure to get through the subject matter, (4) vocal strain, (5) uncertainness concerning subject matter, (6) uncertainness concerning didactical decisions, (7) achievement-related diversity in class, (8) lack of social appreciation, (9) disquietude and noise in class, (10) classroom disturbances, (11) behavioural problems of students, (12) insufficient skills and concentration of students, and (13) insufficient motivation and involvement of students. These identified categories of classroom demands are the basis for the empirical item identification and selection (study 1). The identified single-items were used in a single-case short-term longitudinal study where we examine relationships between classroom demands and autonomic stress reactions via first-order vector autoregressive VAR(1) modelling (study 2). The results are discussed regarding teaching and research implications.

  • Wißhak, Susanne; Hochholdinger, Sabine (2020): Perceived instructional requirements of soft-skills trainers and hard-skills trainers Journal of Workplace Learning. Emerald. 2020, 32(6), pp. 405-416. ISSN 1366-5626. eISSN 1758-7859. Available under: doi: 10.1108/JWL-02-2020-0029

    Perceived instructional requirements of soft-skills trainers and hard-skills trainers

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    Purpose
    This study aims to investigate whether soft-skills trainers and hard-skills trainers have different perspectives regarding their required instructional knowledge and skills.

    Design/methodology/approach
    An online questionnaire was completed by 129 soft-skills trainers and 61 hard-skills trainers. The authors used 14 items covering relevant instructional knowledge and skills based on the training literature.

    Findings
    An exploratory factor analysis identified the following two factors: managing interactions and instructional activities. A multivariate analysis of variance showed significant differences in the assessments of managing interactions (p = 0.00) and instructional activities (p = 0.01) between soft- and hard-skills trainers. The differences in managing interactions were larger than those in instructional activities. The soft-skills trainers showed higher agreement with all items. Most individual items had medium effect sizes. The differing perspectives of soft- and hard-skills trainers are not an effect of different educational backgrounds.

    Research limitations/implications
    These findings suggest that differences exist in the required instructional knowledge and skills depending on whether trainers teach soft or hard skills. Further research should consider the training content.

    Practical implications
    Practitioners can ensure that soft-skills trainers meet the respective requirements.

    Originality/value
    This study is the first to investigate the differences in soft- and hard-skills trainers’ perceptions of instructional requirements.

  • A Macroeconomic Analysis of Tax Evasion and Informality

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  • Three Essays on Identification and Dimension Reduction in Vector Autoregressive Models

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  • Dertwinkel-Kalt, Markus; Köster, Mats; Sutter, Matthias (2020): To buy or not to buy? : Price salience in an online shopping field experiment European Economic Review. Elsevier. 2020, 130, 103593. ISSN 0014-2921. eISSN 1873-572X. Available under: doi: 10.1016/j.euroecorev.2020.103593

    To buy or not to buy? : Price salience in an online shopping field experiment

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    We examine whether shrouding or partitioning of a surcharge raises demand in online shopping. In a field experiment with more than 34,000 consumers, we find that consumers in the online shop of a cinema are more likely to select tickets for a 3D movie when the 3D surcharge is shrouded, but they also drop out more often when the overall price is shown at the checkout. In sum, the demand distribution is independent of the price presentation. This result outlines the limits of the effectiveness of shrouding practices.

  • Kärner, Tobias; Röhrig, Franziska; Warwas, Julia (2020): Situative Anforderungscharakteristika lernprozessbegleitender Diagnostik im Unterricht : Systematisches Literaturreview und Fragebogenentwicklung Zeitschrift für Berufs- und Wirtschaftspädagogik. Steiner. 2020, 116(4), pp. 643-676. ISSN 0172-2875. eISSN 2366-2433. Available under: doi: 10.25162/ZBW-2020-0027

    Situative Anforderungscharakteristika lernprozessbegleitender Diagnostik im Unterricht : Systematisches Literaturreview und Fragebogenentwicklung

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    Ziel des Beitrags ist die literaturgestützte Systematisierung sowie empirische Erfassung von Anforderungscharakteristika lernprozessbegleitender Diagnosen im laufenden Unterricht. Basierend auf einem systematischen Literaturreview sowie auf der Verarbeitung von Fragebogendaten von insgesamt 150 Lehrpersonen werden die folgenden Dimensionen identifiziert, inhaltlich beschrieben, empirisch erfasst und im Ausblick hinsichtlich ihrer forschungs- sowie unterrichtspraktischer Verwendungsmöglichkeiten diskutiert: (1) Vielfalt an Informationen, (2) Informationsdefizite, (3) unsichere Informationsgrundlage, (4) Gefahr situativer Wahrnehmungs- und Urteilsverzerrungen, (5) Zeit- und Handlungsdruck, (6) hohe Entscheidungsverantwortung, (7) fehlende Regeln und Handlungsschemata.

  • Beliefs about Others : A Striking Example of Information Neglect

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    In many games of imperfect information, players can make Bayesian inferences about other players’ types based on the information that is contained in their own type. Several behavioral theories of belief-updating even start from the assumption that players project their own type onto others also when it is not rational. We investigate such inferences in a simple laboratory task, in which types are drawn from one out of two states of the world and participants have to guess the type of another participant. We nd lile evidence for irrational (over-)projection. Instead, between 50% and 70% of the participants in our experiment completely neglect the information contained in their own type and base their choices only on the prior probabilities. Using several experimental interventions, we show that this striking neglect of information is very robust.

  • Findeisen, Stefanie; Horn, Sebastian; Seifried, Jürgen (2020): Lernen in Zeiten von YouTube & Co. Weiterbildung : Zeitschrift für Grundlagen, Praxis und Trends. Luchterhand. 2020, 31(3), pp. 34-37. ISSN 1861-0501

    Lernen in Zeiten von YouTube & Co.

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    Sowohl im privaten Umfeld als auch in Bildungskontexten gewinnen Erklärvideos zunehmend an Bedeutung. Studien zeigen, dass die Nutzung von Erklärvideos mit positiven Effekten verbunden ist. Dies gilt nicht nur für Kriterien wie Motivation oder Aufmerksamkeit, sondern auch für den Wissenszuwachs. Es stellt sich daher die Frage, wie Erklärvideos gestaltet sein sollten.

  • Felfe, Christina; Rainer, Helmut (2020): Intended and Unintended Consequences of Birthright Citizenship CESifo Forum ; 21,4, pp. 14-18

    Intended and Unintended Consequences of Birthright Citizenship

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    dc.contributor.author: Rainer, Helmut

  • Bonnes, Caroline; Leiser, Carmen; Schmidt-Hertha, Bernhard; Rott, Karin; Hochholdinger, Sabine (2020): The relationship between trainers’ media‐didactical competence and media‐didactical self‐efficacy, attitudes and use of digital media in training International Journal of Training and Development. Wiley. 2020, 24(1), pp. 74-88. ISSN 1360-3736. eISSN 1468-2419. Available under: doi: 10.1111/ijtd.12171

    The relationship between trainers’ media‐didactical competence and media‐didactical self‐efficacy, attitudes and use of digital media in training

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    The ongoing digitalization in the training sector produces new demands on the media‐didactical competence of trainers. We conducted an online survey of 279 trainers in Germany to investigate the relationships among media‐didactical competence, media‐didactical self‐efficacy, attitudes toward the use of digital media and the actual use of digital media in training. Furthermore, we compared trainers who attended a course on digital media with trainers who did not attend such a course. The analysis of the theoretically expected correlations between the variables resulted in not all hypotheses being accepted. The analysis of the group differences showed that the trainers who attended a course on digital media had higher media‐didactical competence and media‐didactical self‐efficacy scores and used digital media more often in training. There was no significant difference in negative attitudes. The implications for the promotion of the media‐didactical competence of trainers are discussed.

  • Felfe, Christina; Rainer, Helmut; Saurer, Judith (2020): Why Birthright Citizenship Matters for Immigrant Children : Short- and Long-Run Impacts on Educational Integration Journal of Labor Economics. University of Chicago Press. 2020, 38(1), pp. 143-182. ISSN 0734-306X. eISSN 1537-5307. Available under: doi: 10.1086/704570

    Why Birthright Citizenship Matters for Immigrant Children : Short- and Long-Run Impacts on Educational Integration

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    This paper examines whether the introduction of birthright citizenship in Germany affected immigrant children’s educational outcomes at the first three stages of the education system: preschool, primary school, and secondary school. Using a birth date cutoff as a source of exogenous variation, we find that the policy (i) increased immigrant children’s participation in noncompulsory preschool education, (ii) had positive effects on key developmental outcomes measured at the end of the preschool period, (iii) caused immigrant children to progress faster through primary school, and (iv) increased the likelihood of them attending the academic track of secondary school.

  • Seifried, Jürgen; Schumann, Stephan (2020): Evidenzbasierung in der Bildung : Möglichkeiten und Grenzen eines neuen Paradigmas Berufsbildung : Zeitschrift für Theorie, Praxis, Dialog. Eusl-Verlagsgesellschaft. 2020, 74(184), pp. 3-4. ISSN 0005-9536

    Evidenzbasierung in der Bildung : Möglichkeiten und Grenzen eines neuen Paradigmas

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