Abstract
The advance of information technologies has diversified media of newspapers. The digitization of newspapers can reduce printing and distribution costs, thus it is acceptable ecologically and economically. However, in Japan the digitization advances very slowly and each newspaper company choose an arbitrary policy of the digitization. One of the causes is an impact on the related trades. Therefore, in this paper we survey the structures and changes of Japanese newspaper trades and we contrast strategies of national papers toward the digitization. The final aim of our research is to contrive a novel e-newspaper based on the findings.
