Contracts

Contract drift

The divergence between the terms actually signed and the terms the systems are operating on.

Drift arises whenever the contract is a document and the configuration is data with nothing binding them. A rate keyed in wrongly, an amendment never applied, a renewal that carried forward the old terms — each silently misprices or misaccrues every subsequent transaction.

It is dangerous because it compounds and because it is asymmetric: the counterparty who benefits from the drift has no reason to raise it.

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