http://reply.papertrans.cn/2/191/19015/19015-11.png
Submitted on: 18 May 2018.
Revised on: 29 August 2018.
Accepted on: 10 October 2018.
___________________Journal of Public Policy---CAMBRIDGE UNIV PRESS
Submitted on: 22 July 2018.
Revised on: 20 October 2018.
Accepted on: 03 December 2018.
___________________Journal of Public Policy---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/2/191/19015/19015-14.png
Submitted on: 13 May 1999.
Revised on: 13 August 1999.
Accepted on: 15 September 1999.
___________________Journal of Public Policy---CAMBRIDGE UNIV PRESS
Submitted on: 05 December 2018.
Revised on: 29 January 2019.
Accepted on: 05 March 2019.
___________________Journal of Public Policy---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/2/191/19015/19015-17.png
http://reply.papertrans.cn/2/191/19015/19015-18.png
http://reply.papertrans.cn/2/191/19015/19015-19.png
http://reply.papertrans.cn/2/191/19015/19015-20.png