Explanation:

An agency, in broad terms, is any relationship between two parties in which one, the agent, represents the other, the principal, in day-to-day transactions. The principal or principals have hired the agent to perform a service on their behalf. Principals delegate decision-making authority to agents. Because many decisions that affect the principal financially are made by the agent, differences of opinion, and even differences in priorities and interests, can arise. Agency theory assumes that the interests of a principal and an agent are not always in alignment. This is sometimes referred to as the principal-agent problem.

By definition, an agent is using the resources of a principal. The principal has entrusted money but has little or no day-to-day input. The agent is the decision-maker but is incurring little or no risk because any losses will be borne by the principal.