What it means
The problem begins with separation. The people who own a business are frequently not the people who run it, and once those two roles split, the interests behind them stop lining up automatically.
It matters because the costs are real and measurable rather than merely theoretical. Shareholders pay for boards, auditors and reporting systems to watch what managers do, managers accept restrictive contracts to prove they can be trusted, and whatever misalignment survives both of those still destroys value.
Economists split those costs into three parts: monitoring costs paid by the principal, bonding costs paid by the agent to signal good faith, and the residual loss that remains because no arrangement is ever perfect. Adding the three together produces a rough price tag for the problem in any given organisation.
The usual remedies try to make the agent think like an owner. Share options, deferred bonuses, clawback clauses and independent non-executive directors all exist to narrow the gap, although each brings its own distortion, such as executives managing the share price rather than the underlying business.
The idea extends far beyond the boardroom. Landlords and letting agents, clients and law firms, lenders and borrowers, and head offices and their branch managers all face the same structure, which is why the phrase surfaces so often in commercial negotiations.
In practice
Real-world examples
Example 1
A chief executive paid a bonus on revenue growth pushes through an acquisition that increases sales but reduces profit per share. The board later reweights the bonus towards return on capital so that the incentive matches the shareholders' interest.
Example 2
A property investor employs a letting agent paid a percentage of rent collected. The agent has little reason to press for expensive maintenance that protects the building's long-term value, so the investor adds a fixed annual condition inspection to the contract.
Example 3
A family business hires professional managers while the founding family retains the shares. Family members insist on monthly management accounts and an annual independent valuation, both of which are monitoring costs incurred purely because ownership and control have separated.
Think of it
Imagine hiring a house-sitter while you are on holiday. You want them to care for the property carefully and economically, but they might throw a party or use your expensive groceries because they do not bear the cost.
Formula
Calculation
Total agency cost = Monitoring costs + Bonding costs + Residual loss
Worked example: an owner-investor group holds a mid-sized manufacturer that earns pre-tax profit of $5,000,000 a year. The investors spend $250,000 annually on external audit, board fees and an independent reporting system, which are the monitoring costs.
The management team spends $100,000 a year on executive indemnity cover, third-party certification of production data and a formal quarterly reporting pack that the owners did not demand. Those are bonding costs.
Finally, the owners estimate that management still favours expansion projects over higher-returning maintenance investment, and that this preference costs roughly $400,000 a year in forgone profit. That is the residual loss.
Total agency cost = $250,000 + $100,000 + $400,000 = $750,000.
As a share of pre-tax profit, that is ($750,000 / $5,000,000) x 100 = 15%. The point of the exercise is not precision but proportion: spending another $50,000 on monitoring would be worthwhile only if it cut the residual loss by more than $50,000.Case study
Seen in the real world
This is an illustrative example using a fictional company. Verrindale Components, an invented supplier of precision parts, was owned by a group of passive investors and run by a long-serving managing director. Over six years the company doubled its headcount and opened two new sites, yet return on capital fell from 14% to 6% because the new capacity ran at low utilisation.
An investor review found no dishonesty at all, simply a mismatch of incentives: the managing director's bonus was based on turnover and the size of the operation, while the investors cared about return on the capital they had committed. Verrindale rebased half the bonus on return on capital employed, introduced a three-year deferral, and appointed two non-executive directors at a combined cost of about $180,000 a year. The site expansion programme was paused within one quarter, which the investors regarded as evidence that the incentive, not the individual, had been the problem.
Watch out
Common mistakes
- Assuming the agency problem implies dishonesty, when most cases involve capable people responding rationally to the incentives they were given.
- Piling on monitoring without limit, since audits, approvals and reporting all cost money and can eventually cost more than the behaviour they prevent.
- Treating share options as an automatic fix, when short vesting periods can encourage managers to chase a share price rather than build durable value.
Questions
People also ask
Is the agency problem only about senior executives?
No, it appears anywhere someone acts on another's behalf, including sales staff on commission, contractors paid by the hour, and fund managers investing other people's savings.
How do you measure the residual loss?
You cannot measure it precisely, so it is normally estimated by comparing actual decisions with the decisions an owner would plausibly have taken, which makes it a judgement rather than a calculation.
Does the agency problem disappear in an owner-managed business?
Largely yes between owner and manager, but it can reappear between the owner-manager and lenders, minority shareholders or employees further down the organisation.