A firm, therefore, consists of the system of relationships which comes into existence when the direction of resources is dependent on an entrepreneur... As a firm gets larger, there may be decreasing returns to the entrepreneur function, that is, the costs of organising additional transactions within the firm may rise.
Ronald CoaseIf economists wished to study the horse, they wouldnโt go and look at horses. Theyโd sit in their studies and say to themselves, "what would I do if I were a horse?"
Ronald CoaseIn fact, a large part of what we think of as economic activity is designed to accomplish what high transaction costs would otherwise prevent or to reduce transaction costs so that individuals can negotiate freely and we can take advantage of that diffused knowledge of which Friedrich Hayek has told us.
Ronald Coase