**Abstract**

We describe an average-maturity method to model pre-payments of asset-backed securities for which it may or may not be present an expiration date. Despote the model simplicity it is applicable to a wide range of securities.

**Keywords**: interest-rate derivatives, abs, asset-backed securities, statistical models, interest rates, deriva- tives, pricing functions, bond pricing

**Pdf file**: abs-average-maturity-model.pdf