1. A pooled cross section time series model of coupon promotions Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Davis, J.E. (author) and Ward, R.W. (author) Format: Journal article Publication Date: 1978 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 50 Document Number: C00302 Journal Title: American Journal of Agricultural Economics Journal Title Details: 60(3): 393-401 Notes: Phase1