Dr. D. BOSE is former Associate Professor and Head, Centre for Research and P.G. Studies in Economics, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, Tamil Nadu. He is a life member of the Association of Economists of Tamil Nadu. He has taught Economics to B.A., B.Com., M.A., M.Com. and MBA, students for about 35 years. He acted as the Chairman and Member for many years in the Boards of Examiners of various Autonomous Colleges and Universities in Tamil Nadu. He has organised and attended many National level and International level seminars, conferences, workshops and symposia and presented research papers in them. He has also published many research articles in the National level and International level research journals. He has authored thirteen more books, including books on MICRO ECONOMICS, MATHEMATICAL ECONOMICS and MATHEMATICAL METHODS published by Himalaya Publishing House Pvt. Ltd., Mumbai.