Media type: E-Article Title: Editors' introduction Contributor: Carraro, Carlo; Peracchi, Franco; Weber, Guglielmo imprint: Elsevier BV, 1993 Published in: Journal of Econometrics Language: English DOI: 10.1016/0304-4076(93)90036-5 ISSN: 0304-4076 Keywords: Applied Mathematics ; Economics and Econometrics Origination: Footnote: