Calibrating the Nelson–Siegel–Svensson model
The Nelson–Siegel–Svensson model is widely-used for modelling the yield curve, yet many authors have reported ‘numerical difficulties’ when calibrating the model. We argue that the problem is twofold: firstly, the optimisation problem is not convex and has multiple local optima. Hence standard methods that are readily available in statistical packages are not appropriate. We implement and test an optimisation heuristic, Differential Evolution, and show that it is capable of reliably solving the model. Secondly, we also stress that in certain ranges of the parameters, the model is badly conditioned, thus estimated parameters are unstable given small perturbations of the data. We discuss to what extent these difficulties affect applications of the model.
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Svensson, L.E.O., 1994.
"Estimating and Interpreting Foreward Interest Rates: Sweden 1992-1994,"
579, Stockholm - International Economic Studies.
- Lars E. O. Svensson, 1994. "Estimating and Interpreting Forward Interest Rates; Sweden 1992-1994," IMF Working Papers 94/114, International Monetary Fund.
- Lars E.O. Svensson, 1994. "Estimating and Interpreting Forward Interest Rates: Sweden 1992 - 1994," NBER Working Papers 4871, National Bureau of Economic Research, Inc.
When requesting a correction, please mention this item's handle: RePEc:com:wpaper:031. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Anil Khuman)
If references are entirely missing, you can add them using this form.