The unprecedented fiscal and monetary policy responses during the COVID-19 crisis have increased uncertainty about inflation. During crises periods, the strength of the transmission of inflation uncertainty shocks from one country to another tends to intensify. This paper examines empirical...

This paper investigates the dynamic correlation and volatility of fuel markets in the Visegrad countries: Hungary, the Czech Republic, Poland, and Slovakia. The paper examines regional fuel markets and retail prices. The research explores the interrelationships of Visegrad fuel markets using VAR...

This study examines the dynamic correlation and volatility spillover among the green bond, clean energy, and fossil fuel markets using daily data from 30 June 2014 to 18 October 2021. Using the Bayesian DCC-MGARCH model, we confirmed that the green bond has a weak negative correlation with the...

Assuming the time series of random returns to be jointly elliptical, we derive a relationship between its conditional variance and the probability density function of the conditioning set. In the case that such a relationship is linear in a quadratic form for of the conditioning variables, we...

This paper considers the question of the symmetry of inflation, exchange rate changes and GDP shocks between the EU15 and the new member countries. It applies a relatively new technique, the orthogonal GARCH model, which allows us to calculate a complete time varying correlation matrix for these...

The purpose of this study is to uncover the impacts of macroeconomic risks on oil price uncertainty. We consider three sub-periods, the 2008 global financial crisis, post-global financial crisis, and COVID-19 crisis. A quantile regression model is employed to investigate the related impacts...

We relax the strong rationality assumption for the agents in the paradigmatic Kyle model of price formation, thereby reconciling the framework of asymmetrically informed traders with the Adaptive Market Hypothesis, where agents use inductive rather than deductive reasoning. Building on these...

Using Dutch time-diary data from 1975-2005 covering over 10,000 respondents for 7 consecutive days each, we show that individuals' sleep time exhibits both variability and volatility characterized by stationary autoregressive conditional heteroscedasticity: The absolute values of deviations from...