In 2010, the CBN announced a fixed tenure policy for bank CEOs in Nigeria. To contribute to the understanding of the (in)appropriateness of this policy, this study analyzes the link between CEO tenure and bank efficiency in Nigeria. Using a balanced data set comprising 160 observations of 32...

Originally developed as a statistical tool for empirical research in accounting and finance, event studies have since migrated to other disciplines as well, including economics, history, law, management, marketing, and political science. Despite the elegant simplicity of a standard event study,...

Using firm-specific regressions, I show that earnings response coefficient differ across firms. However, there is no evidence of differential earnings response coefficient to a certain earnings announcement time. By switching to a different announcement time from its preferred time, a firm does...

We draw on the psychology literature on cross-country cultural differences to explain the information content of stock markets around the world. We show that cultural dimensions in the studies of Hofstede (1980, 2001) such as individualism and uncertainty avoidance closely relate to several...

We investigate the prevalence of informed options trading prior to takeover announcements, when the legal prohibition against insider trading is strictest. Although insider trading laws apply equally to the options and stock markets, the options market is considerably more transparent than the...