Upgrade City of SanFrancisco http://t.co/8MbMUDGB 増田真樹 (@maskin) October 16, 2012 http://www.washingtonpost.com/blogs/ezra-klein/wp/2012/10/13/the-marshmallow-test-revisited/

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Posted on October 16 2012 by 増田真樹

Upgrade City of SanFrancisco http://t.co/8MbMUDGB
増田真樹 (@maskin)October 16, 2012

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http://www.washingtonpost.com/blogs/ezra-klein/wp/2012/10/13/the-marshmallow-test-revisited/

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