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  1. Doctors' and Nurses' Social Media Ads Reduced Holiday Travel and COVID-19 Infections
    A Cluster Randomized Controlled Trial
    Autor*in: Breza, Emily; Stanford, Fatima Cody; Alsan, Marcella; Alsan, Burak; Banerjee, Abhijit V.; Chandrasekhar, Arun G.; Eichmeyer, Sarah; Glushko, Traci; Goldsmith-Pinkham, Paul; Holland, Kelly; Hoppe, Emily; Karnani, Mohit; Liegl, Sarah; Loisel, Tristan; Ogbu-Nwobodo, Lucy; Olken, Benjamin A.; Torres, Carlos; Vautrey, Pierre-Luc; Warner, Erica; Wootton, Susan; Duflo, Esther
    Erschienen: 2021
    Verlag:  National Bureau of Economic Research, Cambridge, Mass

    During the COVID-19 epidemic, many health professionals started using mass communication on social media to relay critical information and persuade individuals to adopt preventative health behaviors. Our group of clinicians and nurses developed and... mehr

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    Standort:
    Sächsische Landesbibliothek - Staats- und Universitätsbibliothek Dresden
    Fernleihe:
    keine Fernleihe

    Standort:
    Universitätsbibliothek Freiburg
    Fernleihe:
    keine Fernleihe

    Standort:
    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
    Fernleihe:
    keine Fernleihe

    Standort:
    Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
    Fernleihe:
    keine Fernleihe

    Standort:
    Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
    Fernleihe:
    keine Fernleihe

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Fernleihe:
    keine Fernleihe

     

    During the COVID-19 epidemic, many health professionals started using mass communication on social media to relay critical information and persuade individuals to adopt preventative health behaviors. Our group of clinicians and nurses developed and recorded short video messages to encourage viewers to stay home for the Thanksgiving and Christmas Holidays. We then conducted a two-stage clustered randomized controlled trial in 820 counties (covering 13 States) in the United States of a large-scale Facebook ad campaign disseminating these messages. In the first level of randomization, we randomly divided the counties into two groups: high intensity and low intensity. In the second level, we randomly assigned zip codes to either treatment or control such that 75% of zip codes in high intensity counties received the treatment, while 25% of zip codes in low intensity counties received the treatment. In each treated zip code, we sent the ad to as many Facebook subscribers as possible (11,954,109 users received at least one ad at Thanksgiving and 23,302,290 users received at least one ad at Christmas). The first primary outcome was aggregate holiday travel, measured using mobile phone location data, available at the county level: we find that average distance travelled in high-intensity counties changed by -0.993 percentage points (95% CI -1.616, -0.371, p-value 0.002) the three days before each holiday. The second primary outcome was COVID-19 infection at the zip-code level: COVID-19 infections recorded in the two-week period starting five days post-holiday declined by 3.5 percent (adjusted 95% CI [-6.2 percent, -0.7 percent], p-value 0.013) in intervention zip codes compared to control zip codes

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    Schriftenreihe: NBER working paper series ; no. w29021
    Schlagworte: Coronavirus; Pflegeberufe; Ärzte; Social Web; Infektionskrankheit; Gesundheitsrisiko; Infektionsschutz; USA
    Umfang: 1 Online-Ressource, illustrations (black and white)
    Bemerkung(en):

    Hardcopy version available to institutional subscribers
  2. Sudden stops of capital flows
    do foreign assets behave differently from foreign liabilities?
    Autor*in: Agosin, Manuel R.; Díaz Maureira, Juan; Karnani, Mohit
    Erschienen: junio de 2017
    Verlag:  Universidad de Chile, Departamento de Economía, Santiago

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    VS 407 (436)
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    keine Fernleihe
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 2250/146334
    Schriftenreihe: Serie documentos de trabajo / Universidad de Chile, Facultad Economía y Negocios, Departamento de Economía ; SDT 436
    Umfang: 1 Online-Ressource (circa 30 Seiten), Illustrationen
  3. Aftermarket Frictions and the Cost of Off-Platform Options in Centralized Assignment Mechanisms
    Autor*in: Kapor, Adam; Karnani, Mohit; Neilson, Christopher
    Erschienen: July 2022
    Verlag:  National Bureau of Economic Research, Cambridge, Mass

    We study the welfare and human-capital impacts of the configuration of on- and off-platform options in the context of Chile's centralized higher education platform, leveraging administrative data and two policy changes: an expansion of the number of... mehr

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    Standort:
    Sächsische Landesbibliothek - Staats- und Universitätsbibliothek Dresden
    Fernleihe:
    keine Fernleihe

    Standort:
    Universitätsbibliothek Freiburg
    Fernleihe:
    keine Fernleihe

    Standort:
    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
    Fernleihe:
    keine Fernleihe

    Standort:
    Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
    Fernleihe:
    keine Fernleihe

    Standort:
    Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
    Fernleihe:
    keine Fernleihe

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Fernleihe:
    keine Fernleihe

     

    We study the welfare and human-capital impacts of the configuration of on- and off-platform options in the context of Chile's centralized higher education platform, leveraging administrative data and two policy changes: an expansion of the number of on-platform slots by approximately 40% and the introduction of a large scholarship program. We first show that more programs' joining the platform led students to start college sooner and raised the share of students who graduated on time. We then develop a model of college applications, offers, waitlists, and matriculation choices, which we estimate using students' ranked-ordered applications, on- and off-platform enrollment, and on-time graduation outcomes. When more programs join the platform, welfare increases, and the extent of aftermarket frictions matters less for welfare, enrollment, and graduation rates. High-SES students have greater access to off-platform options, and gains from platform expansion are larger for students from lower-SES backgrounds. Our results indicate that expanding the scope of a higher education platform can have real impacts on welfare and human capital

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Schriftenreihe: NBER working paper series ; no. w30257
    Schlagworte: Studierende; Studium; Absolventen; Humankapital; Studienfinanzierung; Wohlfahrtsanalyse; Chile; General; General
    Umfang: 1 Online-Ressource, illustrations (black and white)
    Bemerkung(en):

    Hardcopy version available to institutional subscribers
  4. Negative externalities of off platform options and the efficiency of centralized assignment mechanisms
    Autor*in: Kapor, Adam; Karnani, Mohit; Neilson, Christopher
    Erschienen: December 31, 2019
    Verlag:  Princeton University, Industrial Relations Section, Princeton

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    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    VS 327
    Fernleihe:
    keine Fernleihe
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Schriftenreihe: Working paper / Princeton University, Industrial Relations Section ; #635
    Schlagworte: Studium; Studierende; Auswahl; Theorie; Chile
    Umfang: 1 Online-Ressource (circa 36 Seiten), Illustrationen