Establishing the Relative Competitiveness Of
The Journal of Applied Business Research – March/April 2015 Volume 31, Number 2 Establishing The Relative Competitiveness Of South African Banking Shares: A Kalman Filter Approach Chris van Heerden, North West University, South Africa Gary van Vuuren, North West University, South Africa ABSTRACT It is argued that the Basel III Accord will undermine the ROE of South African banks, and with the downgrading of South African banks during August 2014, will force investors to revaluate South African banking shares as attractive investment options. However, results from the Sharpe and Omega ratios, based on returns forecast using the Kalman filter, accentuate the likelihood that the South African industry can still be expected to be a competitive and feasible investment option after the downgrade. Evidence suggests that Capitec Bank Holdings Limited and Standard Bank Group Limited will perform the worst of all the South African banks, whereas FirstRand Limited, Investec Limited, and Barclays African Group will exhibit more promise in the future, outperforming world indices, such as the DAX, FTSE 100 and the S&P 500. Keywords: Kalman Filter; Omega Ratio; Sharpe Ratio; South African Banks 1. INTRODUCTION he 2007-2009 global financial crisis reinforced the importance of revaluating bank competition (GFD, 2013), especially if the competitive edge is associated with financial innovations, like sub-prime lending, which is considered as one of the contributors to the financial crisis (Bianco, 2008; Blundell- TWignall, Atkinson & Lee, 2008). New policies and regulations have been developed to address the sources of the financial crisis (see for example BIS, 2011), though regulators and policymakers should be wary of restricting future bank competition completely in an attempt to stabilise the financial system.
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