%0 Journal Article
%T Assessing News Contagion in Finance
%A Giancarlo Nicola
%A Paola Cerchiello
%J -
%D 2018
%R https://doi.org/10.3390/econometrics6010005
%X Abstract The analysis of news in the financial context has gained a prominent interest in the last years. This is because of the possible predictive power of such content especially in terms of associated sentiment/mood. In this paper, we focus on a specific aspect of financial news analysis: how the covered topics modify according to space and time dimensions. To this purpose, we employ a modified version of topic model LDA, the so-called Structural Topic Model (STM), that takes into account covariates as well. Our aim is to study the possible evolution of topics extracted from two well known news archive¡ªReuters and Bloomberg¡ªand to investigate a causal effect in the diffusion of the news by means of a Granger causality test. Our results show that both the temporal dynamics and the spatial differentiation matter in the news contagion. View Full-Tex
%K behavioural finance
%K financial news
%K structural topic model
%K granger causality
%U https://www.mdpi.com/2225-1146/6/1/5