This paper develops textual sentiment measures for China's stock market by extracting the textual tone of 60 million messages posted on a major online investor forum in China from 2008 to 2018. We conduct sentiment extraction by using both conventional dictionary methods based on customized word...

How to effectively reduce the burden of students has received widespread attention in recent years, A series of burden reduction policies have been issued, yet there exists large dispute over the effectiveness of these policies, To assess the impact of the burden reduction policies, we construct...