Submitted on: 21 April 2018.
Revised on: 18 August 2018.
Accepted on: 26 September 2018.
___________________JOURNAL OF AGRICULTURAL ECONOMICS
Submitted on: 20 March 2010.
Revised on: 27 April 2010.
Accepted on: 28 May 2010.
___________________JOURNAL OF AGRICULTURAL ECONOMICS
Submitted on: 13 October 2005.
Revised on: 03 January 2006.
Accepted on: 14 January 2006.
___________________JOURNAL OF AGRICULTURAL ECONOMICS
Submitted on: 06 June 2010.
Revised on: 29 July 2010.
Accepted on: 14 August 2010.
___________________JOURNAL OF AGRICULTURAL ECONOMICS
http://reply.papertrans.cn/2/152/15174/15174-25.png
Submitted on: 02 June 2018.
Revised on: 07 July 2018.
Accepted on: 02 September 2018.
___________________JOURNAL OF AGRICULTURAL ECONOMICS
Submitted on: 08 May 2007.
Revised on: 05 August 2007.
Accepted on: 31 August 2007.
___________________JOURNAL OF AGRICULTURAL ECONOMICS
http://reply.papertrans.cn/2/152/15174/15174-28.png
http://reply.papertrans.cn/2/152/15174/15174-29.png
Submitted on: 20 November 2018.
Revised on: 08 January 2019.
Accepted on: 31 January 2019.
___________________JOURNAL OF AGRICULTURAL ECONOMICS