Much research has been devoted to organizational buying. Unfortunately, few studies focus on the development of specific measures of organizational buying behavior. And although many concepts in the literature are useful for describing and discussing buying behavior, they often cut across other buying activities and therefore may not be empirically distinct. This research applies a combination of literature- and field-based approaches to develop four distinct constructs that underlie the numerous activities in which buyers engage: procedural control, proactive focusing, use of analysis techniques, and search for information. Measurement scales for these constructs are created and then evaluated through a survey of purchasing professionals. The procedure resulted in a set of constructs and measures that may be applied to several complex areas of organizational buying research. © 1994 Academy of Marketing Science.