Economics at your fingertips  

Complementarity and Substitutability: A Dual Approach Based on Luenberger's Benefit Function

Jean-Michel Courtault (), Bertrand Crettez and Naïla Hayek ()
Additional contact information
Bertrand Crettez: LIBRE - Laboratoire interdisciplinaire bisontin de recherches économiques - M.E.N.E.S.R. - Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche - UFC - Université de Franche-Comté
Naïla Hayek: Marin Mersenne - Pour les Mathématiques, l'Informatique et l'Interdisciplinarité - UP1 - Université Panthéon-Sorbonne

CEPN Working Papers from HAL

Abstract: This paper presents another definition of substitutes and complements. It follows a dual approach using the Luenberger's benefit function. The benefit function measures the amount of a reference bundle that an individual would be willing to give up to move from a given utility level to any bundle. Therefore the benefit function associates to any bundle of goods another bundle that lies on a given indifference curve. This enables one to derive an inverse demand function which is defined as the support price of this associated bundle. The classification of goods between complements and substitutes is then obtained by the comparative static properties of the support price. We present some examples which show that the proposed classification is different from the one obtained with another dual approach based on Deaton's distance function.

Keywords: Benefit Function; Complement; Substitute (search for similar items in EconPapers)
Date: 2008-12-01
Note: View the original document on HAL open archive server:
References: Add references at CitEc
Citations: View citations in EconPapers (1) Track citations by RSS feed

Downloads: (external link) (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:

Access Statistics for this paper

More papers in CEPN Working Papers from HAL
Bibliographic data for series maintained by CCSD ().

Page updated 2019-06-19
Handle: RePEc:hal:cepnwp:halshs-00447417