An interrelation model of power and purchasing strategies: A study of vaccine purchase for developing countries

Ala Pazirandeh, Andreas Norrman

Research output: Contribution to journalArticlepeer-review

25 Citations (SciVal)


The purpose of this study is to further understand the relationship between purchasing strategies practiced by less-powerful buyers and their purchasing power. Drawn on the resource dependency theory, a two-way relationship was predicted where power is both a cause and an effect. The theoretical predictions were then explored in a multiple-case study in the context of vaccine procurement for developing countries. This context presents an asymmetric power situation, favoring suppliers, and changes some of the basic assumptions of theories used; i.e. nonprofit, public procurement, and end customer satisfaction. Cases were selected to represent different strategies towards similar power constraints. The results of the study indicated that purchasing strategies were set in response to individual constraints from sources of purchasing power, and not in response to the power positions as the cumulative effect of all sources of power. In practice, some of these purchasing strategies changed the level of sources of power, and some contributed to a changed buyer power position. Based on the findings, it is recommended that less-powerful buyers, like that of vaccines, practice purchasing strategies with the orientation towards an attempt to change the environment, such as encouraging new supply market entries.
Original languageEnglish
Pages (from-to)41-53
JournalJournal of Purchasing and Supply Management
Issue number1
Publication statusPublished - 2014

Subject classification (UKÄ)

  • Transport Systems and Logistics


  • Humanitarian logistics
  • Purchasing power
  • Purchasing strategies
  • Resource dependency theory
  • Vaccine procurement


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