Kurozumi, Eiji; Arai, Yoichi - Institute of Economic Research, Hitotsubashi University - 2006
University Research Unit
for Statistical Analysis in Social Sciences
A 21st-Century COE Program
Institute of Economic … Research
Hitotsubashi University
Kunitachi, Tokyo, 186-8603 Japan
http://hi-stat.ier.hit-u.ac.jp/
Test for the null …