Other stocks in the group, from commercial food products distributorSysco ( SYY ) to cigarette and snack wholesalerCore Mark ( CORE ), have faced a more difficult pricing environment. During those years, wholesalers have worked to retake a measure of control by pursuing new levels of "value-add," the process of improving or altering foods to make them more tasty or convenient. The company has a much more diverse product mix than a specialist like Green Mountain, but it has been stymied by, among other things, the Federal Reserve's strategic effort to tamp down the inflation rate.