Submitted on: 10 December 2009.
Revised on: 09 January 2010.
Accepted on: 06 February 2010.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
Submitted on: 24 February 1998.
Revised on: 03 June 1998.
Accepted on: 19 July 1998.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
http://reply.papertrans.cn/2/148/14793/14793-23.png
Submitted on: 01 June 2021.
Revised on: 18 July 2021.
Accepted on: 30 August 2021.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
Submitted on: 03 July 1998.
Revised on: 28 July 1998.
Accepted on: 24 August 1998.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
Submitted on: 30 January 2022.
Revised on: 19 March 2022.
Accepted on: 12 April 2022.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
Submitted on: 22 August 2001.
Revised on: 30 September 2001.
Accepted on: 20 November 2001.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
Submitted on: 19 December 2013.
Revised on: 20 March 2014.
Accepted on: 17 May 2014.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK
http://reply.papertrans.cn/2/148/14793/14793-29.png
Submitted on: 24 August 2013.
Revised on: 19 December 2013.
Accepted on: 03 February 2014.
___________________JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK