http://reply.papertrans.cn/1/28/2796/2796-31.png
http://reply.papertrans.cn/1/28/2796/2796-32.png
http://reply.papertrans.cn/1/28/2796/2796-33.png
http://reply.papertrans.cn/1/28/2796/2796-34.png
Submitted on: 27 October 2014.
Revised on: 15 January 2015.
Accepted on: 01 March 2015.
___________________Asian Journal of Law and Economics
Submitted on: 10 July 2013.
Revised on: 13 August 2013.
Accepted on: 08 September 2013.
___________________Asian Journal of Law and Economics