Structural Breaks in the Real Exchange Rate Adjustment Mechanism Laurence Copeland and Saeed Heravi We show that the behaviour of the real exchange rates of the UK, Germany, France and Japan has been characterised by structural breaks which changed the adjustment mechanism. In the context of a Time-Varying Smooth Transition AutoRegressive of the kind introduced by Lundbergh et al (2003), we sho...

The present research deals with the review of the analysis and modeling of Swiss franc interest rate curves (IRC) by using unsupervised (SOM, Gaussian Mixtures) and supervised machine (MLP) learning algorithms. IRC are considered as objects embedded into different feature spaces: maturities; maturity-date, parameters of Nelson-Siegel model (NSM). Analysis of NSM parameters and their temporal an...

Cognitive Radios is emerging in research laboratories as a promising wireless paradigm, which will integrate benefits of software defined radio with the capability of awareness of the spectrum environment. To reach this goal many issues remain still open and many functions must still be implemented in a efficienct way. One of the main functions is spectrum sensing, which is the capability to se...

This paper studies the validity of the long-run purchasing parity hypothesis. The five currencies of interest in this study are the U.S. dollar, the U.K. pound sterling, the German mark, the French franc, and the Japanese yen. I attempt two approaches to test the long-run PPP hypothesis. First, I test for unit roots of the real exchange rates themselves. Second, I examine the cointegration rela...