AMERIGHI, Oscar; DE FEO, Giuseppe - Center for Operations Research and Econometrics (CORE), … - 2008
1
CORE, Université catholique de Louvain, Belgium and Department of Economics, University of
Bologna, Italy. E …-mail: oscar.amerighi@uclouvain.be
2
CORE, Université catholique de Louvain, Belgium; Department of Economics, University of … Salerno,
Italy and Department of Economics, University of Strathclyde, U.K. E-mail: Giusepe.defeo@strath.ac.uk
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