Public Investment on Education, Productivity and Economic Growth in Selected Developing Economies: Evidence from the Augmented Solow-Growth Model. Authored by Habtamu Shewalemma Ashine and supervised by Park, Bokyeong, Ph.D. Submitted to Graduate School of Pan-Pacific International Studies, Kyung Hee University, in partial fulfillment of the requirements for the Degree of Master of Arts in International Trade and Economic Cooperation.