Faff, Robert W.; Hillier, David; Hillier, Joseph - In: Journal of Business Finance & Accounting 27 (2000-06) 5&6, pp. 523-554
This paper investigates the performance of three different approaches to modelling time-variation in conditional asset betas: GARCH models, the extended market model of Schwert and Seguin (1990) and the Kalman Filter algorithm. Using daily UK industry returns, we find the simple market model...