Krivelyova, Anna; Robotti, Cesare - Federal Reserve Bank of Atlanta - 2003
world index and for most of the international indices in our sample, we find that the previous week's unusually high levels …This paper documents the impact of geomagnetic storms (GMS) on world and country-specific stock market returns. For the … of geomagnetic activity have a negative, statistically and economically significant impact on today's stock returns. Our …