The sharp drop and subsequent rebound in global stock markets in the current pandemic focuses attention on changes in investors' risk attitudes. A new COVID-19 risk attitude (CRA) index for 61 markets, based on internet searches in Google and Baidu, does a good job at capturing investors'...

We develop a novel trade sentiment index (TSI) based on textual analysis and machine learning applied on a big data pool that assesses the positive or negative tone of the Chinese media. We find the TSI to contribute around 10% of model capacity to explain the stock price variability of 60...