Areas of his recent research include corporate governance, corporate bankruptcy, executive compensation, and corporate disclosure. He has also done research in the areas of financial markets and financial theory. He has published over a hundred articles in several top journals including American Economic Review, Journal of Financial Economics, Journal of Finance, Review of Financial Studies and Financial Management. He was awarded the prestigious Jensen Prize for the best paper published in Journal of Financial Economics in 2000. In addition to his research, Dr. John has bee recognized for his excellence in teaching and received the Citibank Excellence in Teaching Award in 1996.