In this paper we use a multi-disciplinary perspective to identify two
fundamental dimensions which characterize the structuring of inter-fir
m relations: contractual coordination and procedural coordination. Con
tractual coordination refers to the mutual exchange of rights among th
e parties involved. Procedural coordination refers to the mutual excha
nge of information among the parties. Through a quantitative meta-anal
ysis of 32 empirical studies we show that both dimensions are influenc
ed by the same underlying constructs; that they fulfil different but c
omplementary roles in the governance of the relationship; and how thei
r systemic fit impacts the performance of the relationship. These resu
lts are discussed to highlight their implications for the design of in
ter-organizational research.