By HIROKO TABUCHI from NYT Business Day http://www.nytimes.com/2014/12/01/business/thanksgiving-weekend-sales-at-stores-and-online-slide-11-percent.html
Source: The New York Times http://www.nytimes.com/2014/12/01/business/thanksgiving-weekend-sales-at-stores-and-online-slide-11-percent.html