eprintid: 3884
rev_number: 5
eprint_status: archive
userid: 69
dir: disk0/00/00/38/84
datestamp: 2018-01-24 12:09:40
lastmod: 2018-01-24 12:09:40
status_changed: 2018-01-24 12:09:40
type: article
metadata_visibility: show
creators_name: Bilancini, Ennio
creators_name: Boncinelli, Leonardo
creators_id: ennio.bilancini@imtlucca.it
creators_id: 
title: Preferences and normal goods: An easy-to-check necessary and sufficient condition
ispublished: pub
subjects: HB
divisions: EIC
full_text_status: none
keywords: Normal goods; Bordered Hessian
abstract: We provide a necessary and sufficient condition for goods to be normal when utility functions are differentiable and strongly quasi-concave. Our condition is equivalent to the condition proposed by Alarie et al. (1990), but it is easier to check: it only requires to compute the minors associated with the border column (or row) of the bordered Hessian matrix of the utility function.
date: 2010
date_type: published
publication: Economics Letters
volume: 108
number: 1
publisher: Elsevier
pagerange: 13-15
id_number: doi:10.1016/j.econlet.2010.03.005
refereed: TRUE
issn: 0165-1765
official_url: http://doi.org/10.1016/j.econlet.2010.03.005
citation:   Bilancini, Ennio and Boncinelli, Leonardo  Preferences and normal goods: An easy-to-check necessary and sufficient condition.  Economics Letters, 108 (1).  pp. 13-15.  ISSN 0165-1765      (2010)