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The authors report a cross-sectional analysis of the effects of shelf position and space on sales for a frequently purchased, branded grocery product. As is the case in most cross-sectional studies of the effects of shelf policy variables, they are apt to be confounded with store, container size and brand differences in sales. This investigation illustrates the use of several procedures for mitigating the effects of these confounding variables.
Frank et al. (Sun,) studied this question.
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