The theory of the firm consists of a number of economic theories that explain and predict the nature of a firm: e.g. a business, company, corporation, etc... The nature of the firm includes its origin, continued existence, behaviour, structure, and relationship to the market. Firms are key drivers in economics, providing goods and services in return for monetary payments and rewards. Organisational structure, incentives, employee productivity, and information all influence the successful operation of a firm both in the economy and in its internal processes. As such, major economic theories such as transaction cost theory, managerial economics, the behavioural theory of the firm, the resource-based view, and the dynamic capabilities framework provide conceptual frameworks for an in-depth analysis on various types of firms and their management.
Overview In simplified terms, The Theory of The Firm aims to answer these questions:
Existence. Why do firms emerge? Why aren't all transactions in the economy mediated through the market? Boundaries. Why is the boundary between firms and the market located exactly where it exists in relation to size and output variety? Which transactions are performed internally and which are negotiated through the market? Organization. Why are firms structured in such specific ways, for example hierarchically or decentralized? What is the interplay of formal and informal relationships? Heterogeneity of firm actions/performances. What drives different actions and the performance of firms? Evidence. What tests are there for the respective theories of the firm? Firms exist as an alternative system to the market-price mechanism when it is more efficient to produce in a non-market environment. For example, in a labour market, it might be very difficult or costly for firms or organizations to engage in production when they have to hire and fire their workers depending on demand/supply conditions. It might also be costly for employees to shift companies every day looking for better alternatives. Similarly, it may be costly for companies to find new suppliers daily. Thus, firms engage in a long-term contract with their employees or a long-term contract with suppliers to minimize the cost or maximize the value of property rights.
Background The First World War period saw a change of emphasis in economic theory away from industry-level analysis which mainly included analyzing markets to analysis at the level of the firm, as it became increasingly clear that perfect competition was no longer an adequate model of how firms behaved. Economic theory until then had focused on trying to understand markets alone and there had been little study on understanding why firms or organisations exist. Markets are guided by prices and quality as illustrated by vegetable markets where a buyer is free to switch sellers in an exchange. The need for a revised theory of the firm was emphasized by empirical studies by Adolf Berle and Gardiner Means, who made it clear that ownership of a typical American corporation is spread over a wide number of shareholders, leaving control in the hands of managers who own very little equity themselves. R. L. Hall and Charles J. Hitch found that executives made decisions by rule of thumb rather than in the marginalist way.
Transaction cost theory
According to Ronald Coase's essay "The Nature of the Firm", people begin to organise their production in firms when the transaction cost of coordinating production through the market exchange, given imperfect information, is greater than within the firm. Ronald Coase set out his transaction cost theory of the firm in 1937, making it one of the first (neo-classical) attempts to define the firm theoretically in relation to the market. One aspect of its 'neoclassicism' lies in presenting an explanation of the firm consistent with constant returns to scale, rather than relying on increasing returns to scale. Another is in defining a firm in a manner which is both realistic and compatible with the idea of substitution at the margin, so instruments of conventional economic analysis apply. He notes that a firm's interactions with the market may not be under its control (for instance because of sales taxes), but its internal allocation of resources are: "Within a firm, … market transactions are eliminated and in place of the complicated market structure with exchange transactions is substituted the entrepreneur … who directs production." He asks why alternative methods of production (such as the price mechanism and economic planning), could not either achieve all production, so that either firms use internal prices for all their production, or one big firm runs the entire economy. Coase begins from the standpoint that markets could in theory carry out all production and that what needs to be explained is the existence of the firm, with its "distinguishing mark … [of] the supersession of the price mechanism." Coase identifies some reasons why firms might arise, and dismisses each as unimportant:
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