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Power law signature of media exposure in human response waiting time distributions

Author(s)
Crane, Riley; Schweitzer, Frank; Sornette, Didier
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Abstract
We study the humanitarian response to the destruction brought by the tsunami generated by the Sumatra earthquake of December 26, 2004, as measured by donations, and find that it decays in time as a power law ∼1/tα with α=2.5±0.1. This behavior is suggested to be the rare outcome of a priority queuing process in which individuals execute tasks at a rate slightly faster than the rate at which new tasks arise. We believe this to be an empirical evidence documenting the recently predicted [G. Grinstein and R. Linsker, Phys. Rev. E 77, 012101 (2008)] regime, and provide additional independent evidence that suggests that this “highly attentive regime” arises as a result of the intense focus placed on this donation “task” by the media.
Date issued
2010-05
URI
http://hdl.handle.net/1721.1/58603
Department
Massachusetts Institute of Technology. Media Laboratory; Program in Media Arts and Sciences (Massachusetts Institute of Technology)
Journal
Physical Review E
Publisher
American Physical Society
Citation
Crane, Riley, Frank Schweitzer, and Didier Sornette. "Power law signature of media exposure in human response waiting time distributions." Physical Review E 81.5 (2010): 056101. © 2010 The American Physical Society
Version: Final published version
ISSN
1539-3755
1550-2376

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