Robbert Sanders (IMAGE) University of California - San Diego Caption Robert Sanders, assistant professor of Marketing and Analytics at the Rady School. Sanders estimated food waste and inventories indirectly using the shelf lives, sales data and production process knowledge gained from interviews with grocery store employees. Credit: UC San Diego's Rady School of Management. Credit UC San Diego's Rady School of Management Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.