Dr. S.J. Chang has taught finance courses for over twenty-five years at the collegiate level. His main teaching subjects are corporate financial management, investments, and international finance. Dr. Chang's major research interests are in the areas of securities market efficiency and imperfections, financial education, and cultural issues in the global financial market - See more at: http://business.illinoisstate.edu/finance/faculty_staff/chang.shtml#sthash.RsZlQ3M4.dpuf