Purpose – The purpose of this paper is to examine the relationship between beta and returns in the Athens stock exchange (ASE), taking into account the difference between positive and negative market excess returns' yields. Design/methodology/approach – The data were taken from DataStream...

Purpose – This study aims to test empirically the validity of the accounting valuation model that is based on earnings and book values for loss-reporting firms under a conservative accounting regime. Design/methodology/approach – The empirical tests are performed by employing returns models...

Purpose – The purpose of this paper is to examine, whether or not, the residuals of the market model (MM) are conditionally heteroscedastic; to examine, whether or not, there exists an intervalling effect in conditional heteroscedasticity in the residuals of the MM; to propose a simple...

Purpose - The purpose of this paper is to examine the determinants of profitability for a sample of Greek non-financial firms listed in the Athens Stock Exchange for the period 1995-2003. This is a very important period for the Greek economy on the way to European monetary union (EMU)....

Purpose - The aim is to evaluate the performance of symmetric and asymmetric ARCH models in forecasting both the one-day-ahead Value-at-Risk (VaR) and the realized intra-day volatility of two equity indices in the Athens Stock Exchange. Design/methodology/approach - Two volatility specifications...