Functional dynamic factor models with application to yield curve forecasting. (English) Zbl 1454.62302

Summary: Accurate forecasting of zero coupon bond yields for a continuum of maturities is paramount to bond portfolio management and derivative security pricing. Yet a universal model for yield curve forecasting has been elusive, and prior attempts often resulted in a trade-off between goodness of fit and consistency with economic theory. To address this, herein we propose a novel formulation which connects the dynamic factor model (DFM) framework with concepts from functional data analysis: a DFM with functional factor loading curves. This results in a model capable of forecasting functional time series. Further, in the yield curve context we show that the model retains economic interpretation. Model estimation is achieved through an expectation-maximization algorithm, where the time series parameters and factor loading curves are simultaneously estimated in a single step. Efficient computing is implemented and a data-driven smoothing parameter is nicely incorporated. We show that our model performs very well on forecasting actual yield data compared with existing approaches, especially in regard to profit-based assessment for an innovative trading exercise. We further illustrate the viability of our model to applications outside of yield forecasting.


62P05 Applications of statistics to actuarial sciences and financial mathematics
62H25 Factor analysis and principal components; correspondence analysis
62R10 Functional data analysis
91G30 Interest rates, asset pricing, etc. (stochastic models)


forecast; fda (R)
Full Text: DOI arXiv Euclid


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