Recent studies find that a long position in at-the-money straddles consistently yields losses. This is interpreted as evidence for the non-redundancy of options and as a risk premium for volatility risk. This article analyzes this risk premium in more detail by 1) assessing the return properties...

This study examines the behavior of sovereign bonds to COVID-19 related news in 24 countries most affected by the COVID-19 pandemic. The study applies a continuous Hidden Markov Model (HMM) to analyze the regime shifting behavior of sovereign bonds to the news. The results show that the COVID-19...

We examine the relation between price returns and volatility changes in the Bitcoin market using a daily database denominated in various currencies. The results for the entire period provide no evidence of an asymmetric return-volatility relation in the Bitcoin market. We test if there is a...

Modelling of conditional volatilities and correlations across asset returns is an integral part of portfolio decision making and risk management. Over the past three decades there has been a trend towards increased asset return correlations across markets, a trend which has been accentuated...

This paper studies the behavior of emerging stock excess returns in an industry-by-industry context. We examine stock market performance for 23 countries and ten industries over 17 years from 1995 to 2012 – a period that includes major changes in capital market regulations, the removal of...

We document a consistent and robust relation between expected equity premia and common risk factors constructed on the basis of small stocks. Empirically, we show that (i) small-stock components of traditional value and momentum factors capture patterns in returns on regional and global...