英文文献：Production, Planning and Prices
英文文献作者：George B. Richardson
英文文献摘要：
Firms do not exist because of the cost of using the price mechanism, but because they enable actions to be carried out concurrently in conformity with a particular design. This concurrent coordination, which production requires, is distinct from the evolutionary coordination, which is the unintended consequence of market transactions. The two processes are alternatives only to a limited extent. Evolutionary adjustment cannot bring about concurrent coordination, and irreducible uncertainty limits the scope of the planning which does.