Submitted on: 02 July 2002.
Revised on: 02 August 2002.
Accepted on: 26 September 2002.
___________________European Management Journal---ELSEVIER SCI LTD
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Submitted on: 07 March 2019.
Revised on: 16 June 2019.
Accepted on: 15 August 2019.
___________________European Management Journal---ELSEVIER SCI LTD
Submitted on: 15 April 2018.
Revised on: 07 August 2018.
Accepted on: 30 August 2018.
___________________European Management Journal---ELSEVIER SCI LTD
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