This paper presents empirical evidence on scale economies and overcapitalization in Japanese electric utilities. The authors employ the short-run equilibrium model in which the variable cost function treats capital stock as a quasi-fixed factor. They specify the variable cost function as a...

Using a new econometric model, this study provides evidence that contradicts previous assertions about the Japanese labour market. The interrelationship between employment and hours of labour is stressed in this analysis by explicitly dividing labour input into both employment and labour hours....

This article presents an empirical investigation of the role of IT（Information Technology）capital in the Japanese macroeconomy, with a particular focus on the adjustment of IT capital stock. We use the Translog model in this study and treat IT capital as the only quasi-fixed factor. We found...

The purpose of this study is to investigate the copyright protection of intellectual property under vertical relations. Vertical relations among author, manufacturer and retailer are considered. We develop several models, each with a different structure of vertical integration. R&D levels, total...

We tested for the presence of IT capital externalities, based on a translog cost function framework applied to 10 Japanese manufacturing industries for the years 1974 to 1993. This framework allows us to test whether investment in IT capital in other industries reduces costs in a given industry....