Eriksson (2008a, b) and Eriksson and Nilsson (2008) have developed a systemic and
As discussed in the introduction, the traditional competitive procurement procedures
cause many problems (Eriksson and Laan, 2007). The procurement model developed
in this paper therefore proposes that more cooperative procurement procedures will
have positive effects on many aspects of project performance. Next, the choices
during the buying process and their effects on project performance are discussed and
proposed.