This paper examines the impact of sentiment in an online message forum on stock returns. Using a novel controlled experiment, we collect a large panel of messages with no fundamental information but strong sentiment and stock return data. We find a significant causal effect of social media...

This paper studies the returns of credit default swap (CDS) indices over the Federal Open Market Committee (FOMC) cycle from 2005 to 2017. We document that the CDS return is significantly higher in even weeks than in odd weeks of the FOMC cycle. This pattern is linked to the resolution of...

We study the effects of monetary policy surprises (MPSs) on corporate credit default swap (CDS) spreads. Using high-frequency surprises around Federal Open Market Committee (FOMC) announcements, we find a negative relation between changes in unexpected expansionary monetary policy and changes in...

A deep learning method is applied to predict stock portfolio allocation in the Chinese stock market. We use 6 original price and volume series as benchmark model settings and further explore the model's predictive performance with social media sentiment. Our results show that our model can...

Non-stoichiometric ratio Bi 1.5 Zn 1.0+x Nb 1.5 O 7.0+x (BZN-xZnO, -0.15≤x≤0.05) thin films were prepared on FTO glass substrate by sol-gel method. The crystal structures and morphologies were analyzed by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The changes of...