Why can large firms replace contracts with authority and management controls?

Large firms replace complex contracts with authority and management controls because doing so is often a more efficient way to organize economic relationships when transaction costs are high.

In a marketplace, contractual relationships are often hindered by uncertainty, bounded rationality, and the inherent opportunism of individuals, which makes long-term enforcement difficult and costly. When these frictions become significant, firms may choose to integrate their production chains—buying out suppliers or distributors—to internalize these activities.1

By transitioning from a market-based nexus of contracts to a hierarchy, a firm gains the ability to direct resources through administrative authority rather than constant negotiation. Instead of drafting and enforcing complicated legal agreements for every interaction, managers can utilize organizational tools such as monitoring, incentives, and coercion to maintain behavioral control over the production process. This shift allows the firm to mitigate the risks and expenses associated with external market bargaining.12