London Business School Professor Alex Edmans has written an academic paper with Diego Garcia and Oyvind Norli which shows that international football defeats lead to declines in the national stock market index.
Edmans on his blog looked at how this theory has played out in the 2014 World Cup. There has been evidence of stock market declines after defeats in this World Cup. Across all countries with a stock market index, a defeat has led to the index falling by 0.2% faster than the MSCI World index. Moreover, defeats by the “big seven” countries (notably England, Spain, and Italy) have led to declines of 0.5%. Out of the 36 defeats by countries with an active stock market, 24 have been followed by market declines faster than the MSCI World. Below is data from Edmans’ blog and a humourous talk about his paper.