This unique book contains novel and in-depth research regarding economic development in Japan. The authors examine economic development in Japan from both theoretical and empirical perspectives. Using general equilibrium growth accounting and the overlapping generations model, they analyze the relationships between population, agriculture and the economy. The research results are unprecedented and show the effects of increased adult longevity on national savings and the effects of demographic change on the industrial structure; the push-pull effects of technical change in agricultural and non-agricultural sectors and the positive effects of population on technical change and economic development.