Browsing by Person "Oskorouchi, Hamid R."

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    The effect of SMS nudges on higher education performance
    (2024) Brandt, Alicia; Oskorouchi, Hamid R.; Sousa-Poza, Alfonso
    Driven by higher education’s challenges in maintaining student motivation and achievement during the recent pandemic-induced shift to online learning, we investigate the effectiveness of text messages as a nudging tool to increase academic performance. To do so, we use a nonplacebo randomized controlled trial in which the treatment group directly receives SMS texts that review lecture content and give deadline reminders, while the control group only has access to the same information on the course page. Our findings suggest that the reception of motivating SMS messages per se, rather than the content review, has a positive effect on examination outcomes.
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    The long-term cognitive and schooling effects of childhood vaccinations in China
    (2024) Oskorouchi, Hamid R.; Sousa-Poza, Alfonso; Bloom, David E.
    By exploiting rich retrospective data from the China Health and Retirement Longitudinal Study on childhood immunization, socioeconomics, and health status, we assess the long-term effects of childhood vaccination on cognitive and educational outcomes in China. Applying an instrumental variable approach that resembles an unobserved natural experiment to different sets of control variables and subsamples, we estimate the average and local treatment effects of childhood vaccination. Our results confirm that immunization before the age of 15 has long-term positive and economically meaningful effects on non-health outcomes such as education and cognitive skills. These effects are strong, with vaccinated individuals enjoying about one additional year of schooling and performing better on several cognitive tests later in life. Finally, a causal mediation analysis shows that, although education mediates the effect of childhood immunization on later-life cognitive abilities, other factors (e.g., better child health) are more responsible for these long-term effects.