Some institutions within the market are associated with exchange and contracts in an elemental sense (such as the legal system and the customs which … - Geoffrey Hodgson

The nature of the firm is not simply a minimizer of transaction costs, but a kind of protective enclave from the potentially volatile and sometimes destructive, ravaging speculation of a competitive market. In the market the rational calculus depends upon the fragile price conven- tion which can often depend on ‘whim or sentiment or chance’. Habits and traditions within the firm are necessarily more enduring because they embody skills and information which cannot always or easily be codified or made subject to a rational calculus. what the tlrm achieves is an institutionalization of these rules and routines within a durable organizational structure. In consequence they are given some degree of permanence and guarded to some extent from the mood waves of speculation in the market.

It is because prices are stable, and are perceived by agents to be in equilibrium, that the task facing market institutions is less daunting in this respect. However, market institutions may still have many other functions, such as providing information regarding quality and the location of potential buyers and sellers, and regulating both the product and the entrants to the market. In fact, a crucial function may be more subtle; by ordering trade under the aegis of some institution, the price and quality of the product may be legitimized at its given level. There is a kind of stamp of institutional approval which may contribute in a powerful manner to the emergence of price norms…..

The firm as a relatively durable organizational structure is able to deal with the lack of knowledge about the future fruits of research and development and innovation. Its relative internal stability means that it can carry unquantifiable risks which would be eschewed in the volatility of the market. In particular large firms are able to set up and sustain R&D departments with their own funds. It is widely recognized that atomized, small-scale private enterprise is not well able to make such long-term commitments.