We examine the real effects of parent firm diversification on their electric utility operating companies over the period, 1990-2003. Since electric utility operating companies produce a single homogenous product, we can better measure their Total Factor Productivity and make valid comparisons of...

Purpose The purpose of this study is to review the current status and related issues on the market reform of Japanese electric power industry after Fukushima Daiichi nuclear plant disaster. We also discuss the future policy direction for the market reform. Design/methodology/approach This...