Recently, more attention has been paid to income inequality in Japan as well as that in the world. Tachibanaki (1998, 2005) and Ohtake (2005, 2008) pointed out that inequality in Japan has increased during the 1980s and 90s. The talk reviews recent changes in income inequality in Japan.
In this talk, test statistics are proposed for testing a change in inequality. The test statistics are based on the asymptotic theory of order statistics and grouped income data in Japan. The test statistics enable us to examine changes in income inequality in Japan after the 2000s.
Haruhisa Nishino is a Professor of Economic Statistics in the School of Economics, Graduate School of Social Sciences at Hiroshima University, Japan. He is now visiting Monash University. He has a PhD in Economics from the University of Tokyo. His research interests are income inequality, economic statistics and econometrics.