Hartwell, Christopher A. - In: Journal of risk and financial management : JRFM 14 (2021) 9, pp. 1-12
an event is unclear. Political violence is such an event, sending immediate signals about possible impact on firm … political violence in 19th century Russia on its stock market; using a battery of unit root and variance ratio tests, the … evidence is that Russian financial markets were mostly efficient in processing short-term information from political violence …