Meaning
Contract theory defines property rights as the ultimate source of control when parties cannot foresee all future contingencies. The framework developed by hart and moore shows that because contracts are inherently incomplete, the allocation of physical asset ownership determines who holds the power to make decisions in uncontracted situations. This ownership allocation prevents hold-up problems by giving the asset owner the final say.
It explains why holding the physical or legal title to an asset is more valuable than holding a promise of future cooperation.
Incomplete Contract
Writing a perfect agreement that covers every possible future event is impossible. Under the hart and moore perspective, transaction costs and cognitive limits prevent partners from specifying every detail of their joint work in advance. When unforeseen events occur, the partners must renegotiate their terms based on who owns the physical infrastructure.
Asset Control
Control over physical assets gives the owner residual rights of control, which are the rights to use the assets in any way not prohibited by law or contract. In a partnership, the partner who holds the legal title to the client list, the office space, or the technology stack can dictate terms to the partner who only contributes labor. This power dynamic means that the labor-contributing partner is always at risk of having their share of the profits squeezed.
The owner of the asset can always walk away with the infrastructure of the business.
Investment Incentive
The distribution of asset ownership directly affects each partner’s willingness to make relationship-specific investments. If a partner does not own the assets, they will underinvest in the relationship because they fear the owner will expropriate the value of their labor during future renegotiations. The hart and moore model suggests that assets should be owned by the party whose relationship-specific investment is most critical for the venture’s success.
This allocation ensures that the person whose effort is critical has the structural security to perform their work without fear of exploitation. When ownership is misallocated, the partner who performs the daily execution faces a constant capacity drain, as they must dedicate hours to protecting their position rather than improving the service.