Robert Taylor University of Essex   ,   robert.taylor@essex.ac.uk     Biographical Sketch: Robert Taylor was educated at the University of Kent (BA, MSc) and at Cambridge University (MPhil, PhD). His teaching interests cover both theoretical and applied econometrics, in particular time series analysis. His PhD and early research were in the area of modelling and testing for non-stationary seasonality, in particular seasonal unit roots, in macroeconomic time series data. He is still actively working in this area but is also pursuing research programmes on structural stability testing, random coefficient time series models, and on tests for unit roots and co-integration   Primary Research Focus: Time series econometrics   JEL Areas: C2 : Single Equation Models; Single Variables: General C4 : Econometric and Statistical Methods: Special Topics