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Submitted on: 30 January 2025.
Revised on: 31 March 2025.
Accepted on: 25 April 2025.
___________________Contemporary Economics---UNIV ECONOMICS & HUMAN SCIENCES WARSAW
Submitted on: 27 June 2016.
Revised on: 24 October 2016.
Accepted on: 29 November 2016.
___________________Contemporary Economics---UNIV ECONOMICS & HUMAN SCIENCES WARSAW
Submitted on: 01 January 2022.
Revised on: 08 March 2022.
Accepted on: 18 April 2022.
___________________Contemporary Economics---UNIV ECONOMICS & HUMAN SCIENCES WARSAW
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Submitted on: 13 March 2000.
Revised on: 02 June 2000.
Accepted on: 03 July 2000.
___________________Contemporary Economics---UNIV ECONOMICS & HUMAN SCIENCES WARSAW
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