This paper develops a macro-model of share prices that predicts that the growth rates in real share prices and real dividends gravitate toward predictable constants in the long run, but fluctuate on approximately decennial frequencies due to movements in capital's share in total income and the...

The sentiment of news predicts the short-term stock market performance of individual companies. We find that this association is solely due to the idiosyncratic informational content of an article. We transparently quantify the association between news sentiment and stock market performance of...

Artificial intelligence (AI) can improve the resiliency of both individual financial institutions and the financial sector as a whole. Yet, its users must balance benefits and risks of these technologies. This paper illustrates five focus points which financial institutions should consider when...

We construct an index for economic policy uncertainty in Denmark using articles in Denmark's largest financial newspaper. We adapt a Latent Dirichlet Allocation (LDA) model to sort articles into topics. We combine article-specific topic weights with the occurrence of words describing uncertainty...

Applying a probabilistic causal approach, we define a class of time series causal models (TSCM) based on stationary Bayesian networks. A TSCM can be seen as a structural VAR identified by the causal relations among the variables. We classify TSCMs into observationally equivalent classes by...

Mit den diesjährigen Trägern des Nobelpreises für Wirtschaft, Robert. F. Engle und Clive W.J. Granger, werden zwei Vertreter der Zeitreihenökonometrie geehrt. Wie hat sich durch ihr Werk die statistische Analyse ökonomischer Zeitreihen verändert? Wie wird heute Volatilität auf...

Mostly used estimators of Hurst exponent for detection of long-range dependence are biased by presence of short-range dependence in the underlying time series. We present confidence intervals estimates for rescaled range and modified rescaled range. We show that the difference in expected values...

In the paper, we research on the presence of long-range dependence in returns and volatility of BUX, PX and WIG between years 1997 and 2009 with use of classical and modified rescaled range. Moving block bootstrap with pre-whitening and postblackening is used for the construction of confidence...