Amendola, Alessandra; Storti, Giuseppe - Sonderforschungsbereich Ökonomisches Risiko <Berlin> - 2009
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*Department of Economics and Statistics,University of Salerno, Italy … version of the paper.
†Department of Economics and Statistics,University of Salerno, Italy.
E-mail: alamendola …@unisa.it
‡Department of Economics and Statistics, University of Salerno, Italy.
E-mail: storti@unisa.it
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constraints limit the …