Event study methodology is a well-accepted technique in finance. Although its application is popular, there have not been many critical assessments of this practice. For instance, in the estimation process, the researcher has to make a choice in terms of which asset pricing model to adopt when...

The effects of the Boxing Day tsunami on the world equity markets are investigated in this paper. In particular, this paper examines how the risks and returns of industry and market portfolios are altered as a result of the tsunami. The analysis includes countries that were directly or...