This study proposes a new approach to the estimation of daily volatility in financial markets. To do this we evaluate a number of traditional estimators of daily volatility based upon intra-day data and propose a new estimator of daily volatility based upon intra-day data which is both unbiased...

This study proposes a new approach to the specification of the volatility process for the USD-DEM spot exchange rate. This new specification incorporates long-term asymmetric effects. Although asymmetry in the volatility process is well-documented, existing models have typically modelled the...

The relation between market risk and asset returns can be modelled with the Security Market Line (SML), a positive linear relation between expected excess asset returns and the asset's β. Pettengill et al. (1995) make the case that tests of β must be conditioned upon excess market returns to...

The maturity effect is re-examined using the S&P 500 futures contract. A model is estimated in which daily volatility, measured on the basis on intraday data, is determined by its previous value and the number of days remaining to maturity. The estimation results do not support the maturity...

We propose an alternative approach to examine the nonlinear (asymmetric) behaviour of interest rates which can be both size and sign dependent. Compared to other widely used approaches, our model performs quite well based on two model selection criteria.

This article examines whether idiosyncratic risk is priced for equities listed in the Australian Stock Exchange (ASX). Specifically, this article follows the methodology of Bali et al. (2005) and investigates whether idiosyncratic volatility is able to predict 1-month ahead excess returns on the...