Dangers in using market-level data for determining promotion effects
By: Dick R. Wittink, John C. Porter, and Sachin Gupta
Contributors: Porter, John C; Gupta, Sachin
Series: Report / Marketing Science Institute -- no. 93-115; Report (Marketing Science Institute) -- no. 93-115
Publisher: Marketing Science Institute
Published: 1993
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 40
Subjects: Marketing research
Notes: "Working paper."

"September 1993."

Includes bibliographical references (p. 39-40)