De facto joint control vs. joint de facto control
A and B have an arrangement in which they each have a 24% voting interest. Decisions about the relevant activities require a majority of the voting rights. The remaining 52% is widely dispersed. A and B have an agreement that they will agree on decisions about relevant activities.
Analysis
Collectively, A and B have de facto control, (power without a majority of voting rights), based on the requirements of IFRS 10. Since there is a contractual agreement for A and B to agree on all decisions, there is joint de facto control, and this would be a joint arrangement, because there is joint control.
Variation assume the same facts as above, except that there is no requirement for A and B to agree on all decisions. In this case, although A and B collectively control the arrangement, since there is no requirement for unanimous consent between them, there is no joint control. In this situation, A and B would likely each have significant influence over the arrangement.