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Dordrecht [u.a.]: Kluwer Academic Publishers, c 1995
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Cambridge, Mass: National Bureau of Economic Research, June 2013
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[S.l.]: SSRN, [2012]
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[S.l.]: SSRN, [2010]
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Cambridge, Mass: National Bureau of Economic Research, November 2007
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[S.l.]: SSRN, [2008]
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[S.l.]: SSRN, [2008]
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Cambridge, Mass: National Bureau of Economic Research, August 2008
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Cambridge, Mass: National Bureau of Economic Research, January 2004
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Cambridge, Mass: National Bureau of Economic Research, April 2003
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[S.l.]: SSRN, [2003]
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Cambridge, Mass: National Bureau of Economic Research, December 2001
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Cambridge, Mass: National Bureau of Economic Research, January 2002
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Cambridge, Mass: National Bureau of Economic Research, December 2002
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Cambridge, Mass: National Bureau of Economic Research, December 2001
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Cambridge, Mass: National Bureau of Economic Research, January 1999
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Cambridge, Mass: National Bureau of Economic Research, March 1996
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Cambridge, Mass: National Bureau of Economic Research, August 1994
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Cambridge, Mass: National Bureau of Economic Research, July 1993
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Cambridge, Mass: National Bureau of Economic Research, 2020