Media type: E-Article Title: Paper not published Contributor: Di Guilmi, Corrado; Gallegati, Mauro; Landini, Simone Published: Walter de Gruyter GmbH, 2009 Published in: Economics: The Open-Access, Open-Assessment E-Journal (2009) Language: English DOI: 10.5018/economics-ejournal.ja.2009-18 ISSN: 1864-6042 Keywords: General Economics, Econometrics and Finance Origination: Footnote: Access State: Open Access