Nov. 14, 2005—In mid-October, Wal-Mart announced that a University of Arkansas study showed the use of RFID to track cases of products in Wal-Mart stores led to a 16 percent reduction of out-of-stock products and faster shelf replenishment of those items over items tracked via bar codes at the case level (see EPC Reduces Out of Stocks at Wal-Mart).
An 18-page research paper based on the study was published, entitled \"Does RFID Reduce Out-of-Stocks? A Preliminary Analysis.\" The paper describes the Wal-Mart-commissioned study in detail, outlining how out-of-stock levels were measured and compared between the 12 RFID-enabled stores and 12 control stores. It also explains the methodology researchers used to account for the natural fluctuations of out-of-stock levels within the test and control stores, so that a fair comparison could be made.
Prior to the study, Wal-Mart leveraged its RFID system to make an important business process change in how it monitors and manages shelf......
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