In this paper I test for and model volatility jumps for the General Index (GD) of the Athens Stock Exchange (ASE), expanding the previous literature on the ASE in various ways. Using intraday data I first construct various state-of-the-art realized volatility estimators which I then use in...

This paper presents evidence suggesting that artificial neural networks approach (ANNs) outperform traditional statistical methods and can forecast equity premiums reasonably well. The study replicates out-of-sample estimates of regression using ANN with economic fundamentals as inputs. The...

This study attempts to address two research questions on the idiosyncratic return volatility and stock price informativeness. First, whether idiosyncratic return volatility is a valid proxy for stock price informativeness in emerging markets, and if it is, whether there exists a monotonic...

Controlling for unobserved heterogeneity (or “common errors”), such as industry-specific shocks, is a fundamental challenge in empirical research. This paper discusses the limitations of two approaches widely used in corporate finance and asset pricing research: demeaning the dependent...

Investment managers require a consistent asset pricing model, asset allocation recommendations and risk-adjusted performance measures (or the “three facets of investing”) to be effective in managing portfolios. Incorporating three critical realities of investing into these models (i.e., that...

An effective asset pricing model should provide consistent recommendations for asset pricing, asset allocation and measuring risk-adjusted performance (or the “three facets of investing”). This paper incorporates three critical realities of investing (i.e., that investors have many...

The study raises the question of the existence of size effect and, consequently, size premium of companies from emerging markets, exemplified by the Russian market. Lack of such studies on the Russian market, as well as a paucity of them on emerging markets on the whole prompted me to study this...

Changing economic environments, geopolitical instability, and the explosive growth of emerging markets, compounded by the recent turbulence in the world's capital markets, has posed new challenges for the study of asset pricing. The following study raises questions about the existence (lack of...