Prior research in the field of purchasing points out that an assessment of sourcing strategies is a complex task. Accordingly, it is proposed to expand the purely cost-saving oriented assessment of sourcing activities. Particularly, it is recommended to monitor the intensity of competition in the supply market as an indicator for sourcing success. However, buying organizations struggle to measure competition in their supply markets. In this context, in homogenous product markets, it can be observed that the offered prices for an item vary considerably. A review of economic literature on price dispersion indicates that offered prices could reflect competitive pressures in B2C markets. As a consequence, in this paper, it is argued that also in B2B environments, price dispersion could be applied as a measure for competitive pressures. Thus, this conceptual research paper aims at clarifying the role of price dispersion in B2B supply markets. Based on the reviewed literature, and in combination with the theory of competitive dynamics, five practical recommendations for industrial purchasing are developed.