Authors: Josep-Maria Colomer and Humberto Llavador
SERIEs, Vol. 3, No 40574, 73--93, January, 2011
This paper originally appeared as
Barcelona School of Economics Working Paper 331
Authors: Josep-Maria Colomer and Humberto Llavador
SERIEs, Vol. 3, No 40574, 73--93, January, 2011© Barcelona Graduate School of Economics. All rights reserved.