When banking institutions can expand into other lines of business, some think they will diversify to reduce their total risk. Others think just the opposite. In this article, John H. Boyd and Stanley L. Graham explain the reasoning behind these two views and then test to see which one best...

This paper examines whether the U.S. banking industry's recent consolidation trend--toward fewer and bigger firms--is a natural result of market forces. The paper finds that it is not: The evidence does not support the popular claims that large banking firms are more efficient and less risky...