Dr. Masahiro Kuroda, (84 years old), born on January 17, 1941. While enrolled at Keio University, he studied abroad at Harvard University in the United States for two years from 1979 to 1981, with support from the Fulbright Foundation. At Harvard, I received numerous forms of support while serving as a Visiting Professor in the Department of Economics and as a Visiting Scholar at the Harvard University Japan Institute. My collaborative research with Professor Dale W. Jorgenson, a leading economist at Harvard, has continued since that time, and this book is the culmination of that research. During my stay, I also received generous support from Dr. Edwin O. Reischauer, then Director of the Harvard University Japan Institute. Masahiro Kuroda is a Principal Fellow, Center for Research and Development Strategy, Japan Science and Technology Agency (JST). Professor Emeritus of Keio University. Ph.D. (Business and Commerce). He was promoted to Professor in 1982. Through the Director of the Keio Economic Observatory and Vice President (provost) of Keio University during June 2001- May 2005, he moved on to President of Economic and Social Research Institute, Cabinet Office during June 2005-May 2008. In June 2008, he affiliated with current position. He experienced President of the International Input-Output Association (IIOA) during 1997-1999; and Chairman of the Advisory Committee for Natural Resources and Energy, Energy and Supply Sub-committee in Japan from 1998-2010. (Awards): the Economist Award and the Japan Statistical Society Prize. (Publication) General Equilibrium Analysis of Japanese Economy (co-author, 1974); Introduction to Positive Economics (1984), Quantitative Analysis to General Equilibrium (1989) etc.