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Submitted on: 27 January 2000.
Revised on: 21 April 2000.
Accepted on: 19 May 2000.
___________________JOURNAL OF LABOR ECONOMICS---UNIV CHICAGO PRESS
Submitted on: 09 July 2022.
Revised on: 03 November 2022.
Accepted on: 20 December 2022.
___________________JOURNAL OF LABOR ECONOMICS---UNIV CHICAGO PRESS
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Submitted on: 07 October 2014.
Revised on: 28 December 2014.
Accepted on: 27 January 2015.
___________________JOURNAL OF LABOR ECONOMICS---UNIV CHICAGO PRESS
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Submitted on: 06 May 2020.
Revised on: 19 August 2020.
Accepted on: 02 September 2020.
___________________JOURNAL OF LABOR ECONOMICS---UNIV CHICAGO PRESS
Submitted on: 08 December 2015.
Revised on: 15 March 2016.
Accepted on: 28 March 2016.
___________________JOURNAL OF LABOR ECONOMICS---UNIV CHICAGO PRESS
Submitted on: 07 May 2008.
Revised on: 25 June 2008.
Accepted on: 22 July 2008.
___________________JOURNAL OF LABOR ECONOMICS---UNIV CHICAGO PRESS
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