Last decades are characterized by increasing pace of globalization - local events tend to influence distinct and remote places. Although the recent Global Financial Crisis of 2007-2009 originated in the USA as credit market turmoil, it hit nearly all stock markets around the world severely. So, how interdependent are the international stock markets? Has the Crisis brought new perspectives in this respect? The first part of the book discusses theoretical causes of international stock market interdependencies. The second part empirically assesses the interconnection of eleven major global stock markets during the period of 2000 to 2010. Overall markets as well as five industry sectors are examined separately. The results presented in this book bear interesting implications for individual investors, portfolio managers, and also policymakers.