Michael Jensen & William Meckling

An agency relationship is "a contract under which one or more persons (the principal[s]) engage another person (the agent) to perform some service on their behalf which involves delegating some decision-making authority to the agent" (Jensen & Meckling 1976). The decisive insight is behavioral and unsentimental: *if both parties are utility maximizers, the agent will not always act in the principal's best interest.* Divergence of objective functions is the default state of any delegated relationship, not a pathology to be moralized away. In the space domain, every important relationship is an agency relationship in this sense - a government (principal) contracting a launch provider (agent); a state (principal) licensing a satellite operator (agent); the community of orbit users (collective principal) relying on each operator (agent) to internalize the collision risk it creates.

Jensen and Meckling decomposed the total cost of any agency relationship into three irreducible parts: (1) **monitoring expenditures** by the principal to observe and constrain the agent's behavior; (2) **bonding expenditures** by the agent to credibly commit not to harm the principal (and to compensate if it does); and (3) the **residual loss** - the dollar-equivalent reduction in the principal's welfare that remains even after optimal monitoring and bonding, because perfect alignment is prohibitively expensive. Agency costs are never zero; the design question is how to *minimize their sum*, not how to eliminate the conflict. This triad is the diagnostic skeleton this reviewer applies to every space-governance proposal: name the monitoring mechanism, name the bonding mechanism, and quantify the residual loss the architecture leaves on the table.

Jensen and Meckling rejected the notion of the firm as a unitary actor with a single will. The firm is a "legal fiction which serves as a nexus for a set of contracting relationships among individuals" (1976). There is no "behavior of the firm"; there is only the equilibrium outcome of contracts among self-interested parties. Applied to space, this dissolves reified abstractions like "the launch industry will self-regulate" or "the constellation operators will cooperate." There is no collective will to appeal to - only the contracts, incentives, and property rights that structure individual behavior.

Because contracts are incomplete and monitoring is costly, agents impose costs on parties to whom they are not contractually bound - externalities. The Jensen-Meckling lens treats an externality as an agency failure writ large: the actor creating the cost is not the residual claimant who bears it, so the cost does not enter the actor's objective function. The corrective is not exhortation but *re-assignment of the residual claim* - making the cost-creator bear the cost through property rights, liability, or a price. Orbital debris is the paradigmatic case: an operator launches without considering the collision risk it imposes on others, precisely because that risk is not in its objective function.

The Jensen-Meckling program is methodologically committed to taking preferences as given and changing *incentives*, not to changing hearts. You do not solve an agency problem by asking agents to be more virtuous; you solve it by restructuring the payoffs so that the self-interested choice and the socially efficient choice coincide. This is the sharpest distinction between this reviewer and softer "norms and culture" approaches: a norm with no monitoring and no graduated sanction is, in agency terms, cheap talk that does not change the agent's payoff matrix and therefore should not be expected to change behavior.

A corollary that does much of the analytic work: the *observability* and *measurability* of agent behavior determines which contracts and institutions are feasible. Where outputs are cheap to verify, output-based (fixed-price, fee) contracts dominate; where behavior is hidden and outputs noisy, the principal must invest in monitoring, accept bonding, or eat residual loss. The state of space situational awareness - how cheaply we can observe what operators actually do in orbit - is therefore not a mere technical detail but the binding constraint on what space-governance architectures are even possible.