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DTSTART;TZID=America/New_York:20230926T110000
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CREATED:20230829T194932Z
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UID:9528-1695726000-1695729600@seasevents.nmsdev7.com
SUMMARY:ESE Fall Seminar - "Large Observational Study of the Causal Effects of a Nudge and the Geometry of Causality"
DESCRIPTION:Nudges are interventions promoting healthy behavior without forbidding options or significant incentives. As an example of a nudge\, the Apple Watch encourages users to stand by delivering a notification if they have been sitting for the first 50 minutes of an hour. \nBased on 76 billion minutes of observational standing data from 160\,000 subjects in the public Apple Heart and Movement Study\, amount of data in the field that makes this work one of the largest ever in the subject\, we estimate the causal effect of this notification using a novel regression discontinuity design for time-series data with time-varying treatment. We show that the nudge increases the probability of standing by up to 44%\, a very significant effect compared to what has been reported in the literature\, remaining effective with time\, even after almost 2 years. The nudge’s effectiveness increases with age\, and it is independent of gender. Closing Apple Watch Activity Rings\, a visualization of participants’ daily progress in Move\, Exercise\, and Stand\, further increases the nudge’s impact. We conclude the presentation with some recent work on connections between geometry and causal inference. \nThe first part of the presentation is joint work with Achille Nazaret while the second is with Amir Farzam and Allen Tannenbaum.
URL:https://seasevents.nmsdev7.com/event/ese-fall-seminar-title-tbd-3/
LOCATION:Glandt Forum\, Singh Center for Nanotechnology\, 3205 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
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