@techreport{d0def37150994d139dcb3dd1d9633ff0,
title = "Vocabulary Herfindahl Index (VocaHIn):: Linguistic Dominance and Collective Effervescence in WallStreetBets",
abstract = "Our analysis of more than 150,000 WallStreetBets comments reveals dominant phrases when members of the community experience collective excitement and solidarity (Collective Effervescence). Using the novel Vocabulary Herfindahl Index (VocaHIn), we find that stock returns volatility increases after CE, and vice versa.",
keywords = "Vocabulary Herfindahl Index (VocaHIn), Collective Effervescence, Retail Investors, Meme stocks",
author = "Ko Hayakawa and Yoichi Otsubo and Ser-Huang Poon and Siliang Wei",
year = "2024",
language = "English",
publisher = "Elsevier BV",
address = "Netherlands",
type = "WorkingPaper",
institution = "Elsevier BV",
}