Submitted on: 01 January 2017.
Revised on: 01 February 2017.
Accepted on: 14 March 2017.
___________________HITOTSUBASHI JOURNAL OF ECONOMICS
Submitted on: 24 March 2007.
Revised on: 15 April 2007.
Accepted on: 26 May 2007.
___________________HITOTSUBASHI JOURNAL OF ECONOMICS
http://reply.papertrans.cn/2/115/11447/11447-13.png
http://reply.papertrans.cn/2/115/11447/11447-14.png
http://reply.papertrans.cn/2/115/11447/11447-15.png
http://reply.papertrans.cn/2/115/11447/11447-16.png
Submitted on: 10 July 2016.
Revised on: 20 September 2016.
Accepted on: 30 September 2016.
___________________HITOTSUBASHI JOURNAL OF ECONOMICS
Submitted on: 25 September 2023.
Revised on: 22 October 2023.
Accepted on: 11 December 2023.
___________________HITOTSUBASHI JOURNAL OF ECONOMICS
http://reply.papertrans.cn/2/115/11447/11447-19.png
http://reply.papertrans.cn/2/115/11447/11447-20.png