Recent limitations of Natural gas deliveries from Russia to Europe have made electricity prices reach levels never before witnessed in several European countries. Because of the integration of the European electricity market, Norway, where electricity prices have been relatively low...

Weekends and holidays lead to gaps in daily financial data. Standard models ignore these irregularities. Because this issue is particularly important for persistent time series, we focus on volatility modelling, specifically modelling of realized volatility. We suggest a simple way of adjusting...

We investigate the impact of monetary policy announcements on stock market volatility in the U.S., Canada, Japan, the U.K., Germany, France and Italy during the 2006-2016 period. More specifically, we study the impact of policy rate and quantitative easing announcements of domestic and foreign...

We study the impact of fuel prices, emission allowances, demand, past prices, wind and solar production on hourly day-ahead electricity prices in Germany over the period from January 2015 until June 2018. Working within a linear regression, ARX-EGARCH and quantile regression framework we compare...

We apply heterogenous autoregressive (HAR) models – including nine univariate, two multivariate and three combination models – to high-frequency data to predict the one-day forward volatilities of two strategically linked commodities, gold and silver. We provide evidence that it is difficult...

This paper investigates volatility forecasting for crude oil and natural gas. The main objective of our research is to determine whether the heterogeneous autoregressive (HAR) model of Corsi (2009) can be outperformed by harnessing information from a related energy commodity. We find that on...

This is the first comprehensive study on the forecasting of the realized volatility of non-ferrous metal futures. Based on 8.5 years of intraday data on copper, zinc, nickel, lead and aluminum, we explore a variety of extensions of the univariate heterogeneous autoregressive (HAR) model and seek...

The observation that price declines usually lead to volatility increases is known as the asymmetric volatility effect and has become a stylized fact about the financial markets. We study asymmetric volatility effect in 19 equity indices from North America, Latin America, Europe, Asia and...