The planned coordination of all human activities requires collecting all necessary knowledge within a central decision-making body. The absence of full knowledge means that the order formed through processes of coordination of activities does not have to be the intended goal of these activities. In particular, the spontaneous order theory indicates that many institutions with a complex structure which might seem to be a deliberate product of a plan of some omniscient decision-making body result from the bottom-up, unintentional actions of individuals. The particular importance of the problem of knowledge also produces the possibility of applying the spontaneous order theory to the question of the effectiveness of mono- and polycentric systems of coordinating human actions. The existence of cognitive human limitations and the possibility of the emergence of a spontaneous order are also applied to the concept of the veil of ignorance.