Herding and investor sentiment after the cryptocurrency crash: evidence from Twitter and natural language processing Financial Innovation Full Text According to Haykir and Yagli (2022), herding behavior in cryptocurrency was prominent during the global COVID-19 pandemic. A study of 50 cryptocurrencies also revealed evidence of herding behavior among investors (da Gama Silva et al. 2019). Specific… Seguí leyendo How To Perform Sentiment Analysis in Python 3 Using the Natural Language Toolkit NLTK