@mastersthesis{publication-20423, author={Whalen, Brian}, editor={Ramelli, Stefano and Wagner, Alexander}, faculty={Faculty of Business, Economics and Informatics}, institution={University of Zurich}, pages=32, title={The Effect on Stock Markets of President Trump’s Tweets Regarding Covid-19 During a Global Pandemic: An Analysis of S&P 500 Performance Before and After Tweets Made by the U.S. President}, year=2020, }