In this work we provide evidence that the cryptocurrency market is connected to sentiment extracted from social media. We apply state-of-the art methodology from the field of natural language processing on tweets posted by Twitter accounts with large numbers of followers, selected with...

Renewable energy sources play an essential role in the broader context of environmental protection and the fight against the effects of climate change. At the European level, the need to increase the proportion of energy generated by renewable resources is formalised through the Renewable Energy...

The impact of scheduled releases of macroeconomic variables on the dynamics of financial markets has always attracted a great deal of academic attention in efforts to quantify market responses in terms of volatility and jumps. We investigate whether the occurrence of market reaction due to...

Option pricing by the use of Black Scholes Merton (BSM) model is based on the assumption that asset prices have a lognormal distribution. In spite of the use of these models on a large scale, both by practioners and academics, the assumption of lognormality is rejected by the history of returns....

Basel II Recommendations concerning internal rating based models approach for financial institutions and the success of RiskMetrics made Value-at-Risk (VaR) is the most important risk measurement instrument at international level. The objective of this paper is to address the problem of adapting...

The ARCH type of models is a notorious family of models proven to be suitable for predicting financial returns. Their notoriety flourished after Bollerslev (1986) developed the econometric Generalized ARCH model (GARCH). This paper provides a presentation of the main characteristics of the...

The objective of our paper is to analyze the possibility to provide a forecast for the sign of the financial asset returns using the empirical prices of stocks listed at the Bucharest Stock Exchange. Previous research provided by Christoffersen and Diebold (2004) among others show that even if...