Networks and Workouts: Treatment Size and Status Specific Peer Effects in a Randomized Field Experiment
This paper estimates treatment size and status specific peer effects that are not detected by widely-used approaches to the estimation of spillovers. In a field experiment using university students, we find that subjects who have been incentivized to exercise increase gym usage more if they have more treated friends. However, control subjects are not influenced by their peers. Findings demonstrate that fraction treated has a large influence on outcomes in this environment, and spillovers vary greatly by treatment status. Results highlight subtle effects of randomization and document a low-cost method for improving the generalizability of controlled interventions in networked environments.
|Date of creation:||Dec 2010|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
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- Kuhn, Peter J. & Kooreman, Peter & Soetevent, Adriaan R. & Kapteyn, Arie, 2010. "The Effects of Lottery Prizes on Winners and their Neighbors: Evidence from the Dutch Postcode Lottery," IZA Discussion Papers 4950, Institute for the Study of Labor (IZA).
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