This analogy, coined by economist D.H. Robertson and cited by Ronald Coase, contrasts the internal workings of a firm with the external market. Firms are depicted as 'islands of conscious power,' where production is deliberately planned and directed by authority. These islands exist within an 'ocean of unconscious cooperation,' which represents the spontaneous, decentralized coordination of the market mechanism.

Robertson's Analogy: Firms as Islands of Conscious Power

According to Ronald Coase, firms exist because it can be more profitable to produce goods and services internally ('make') than to purchase them from external suppliers ('buy'). A firm's decisions on what to make in-house versus what to buy from the market determine the firm's boundaries and, consequently, the extent of the market itself. This fundamental 'make-or-buy' choice is guided by the relative costs of each option.

Coase's Theory of the Firm: The Make-or-Buy Decision

Market coordination, also known as the price mechanism, is a method of organizing economic activity through decentralized transactions between independent agents. In this system, prices convey all the necessary information for buyers and sellers to make decisions, and relationships are governed by contracts for each exchange. This stands in contrast to the internal, hierarchical coordination within a firm.

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