Hold-up problem

In economics, the hold-up problem is central to the theory of incomplete contracts, and shows the difficulty in writing complete contracts. A hold-up problem arises when two factors are present:

1. Parties to a future transaction must make noncontractible relationship-specific investments before the transaction takes place.
2. The specific form of the optimal transaction (such as quality-level specifications, time of delivery, what quantity of units) cannot be determined with certainty beforehand.^[1]

The hold-up problem is a situation where two parties may be able to work most efficiently by cooperating but refrain from doing so because of concerns that they may give the other party increased bargaining power and thus reduce their own profits. When party A has made a prior commitment to a relationship with party B, the latter can 'hold up' the former for the value of that commitment. The hold-up problem leads to severe economic cost and might also lead to underinvestment.