We investigate price effects after one-day abnormal returns during crises in US, Japanese, Chinese, Russian and Brazilian stock markets, using the ANOVA, Mann-Whitney, t-tests, the modified cumulative abnormal return approach, regression analysis with dummy variables, and the trading simulation...

This paper analyses the price gap anomaly in the US stock market (comprised of the DJI, S&P 500 and NASDAQ) covering the period 1928 to 2018. This paper aims to investigate whether or not price gaps create market inefficiencies. Price gaps occur when the current day's opening price is different...

In this paper, we conduct a comprehensive investigation of calendar anomaly evolution in the US stock market (given by the Dow Jones Industrial Average) for the 1900 to 2018 period. We employ various statistical techniques (average analysis, Student's t-test, ANOVA, the Kruskal-Wallis and...

In this paper, we conduct a comprehensive investigation of the Halloween effect evolution in the US stock market over its entire history. We employ various statistical techniques (average analysis, Student's t-test, ANOVA, and the Mann-Whitney test) and the trading simulation approach to analyse...