Capital structure theory is one of the most dynamic areas of finance and forms the basis for modern thinking on the capital structure of firms. Much controversy has resulted from comparisons of the theory of capital structure originally developed by Franco Modigliani and Merton Miller to real-world situations. Two competing theories have emerged over the years, the optimal capital structure theory and the pecking order theory. Arvin Ghosh begins with an overview of the controversies regarding capital structure theories, and then statistically tests both the optimal capital structure and...