![Distractions Lower Our IQ [Excerpt]: Scientific American](http://www.scientificamerican.com/sciam/cache/file/F485EF72-1D10-4AA8-81E79F10C741E210.jpg)
A preoccupation with scarcity diminishes IQ and self-control. Simple measures can help us counteract this cognitive tax Adapted from Scarcity: Why Having Too Little Means So Much , by Sendhil Mullainathan and Eldar Shafir by arrangement with Time Books, and imprint of Henry Holt and Company, LLC (North America), and Allen Lane (UK).
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