An algebraic theory of multi-product decisions |
| |
Authors: | David A. Hennessy Harvey E. Lapan |
| |
Affiliation: | (1) Department of Economics and CARD, Iowa State University, IA 50011-1070 Ames, USA;(2) Department of Economics, Iowa State University, IA 50011-1070 Ames, USA |
| |
Abstract: | Summary. We exploit the existence of matrix group symmetries on a production possibility set to identify group symmetries on the profit function. The groups are isomorphic, and provide a pre-ordering on firm preferences over prices. Together with additional structure on the technology, symmetries generate comparative statics on price responses. Linear and other invariances place bounds on firm choice vectors. Reflection group asymmetries on the feasible choice set also support welfare rankings over prices. The methods are adapted to study consumer decisions.Received: 12 August 2002, Revised: 30 January 2004, JEL Classification Numbers: D11, D21, C60, L23. Correspondence to: David A. Hennessy |
| |
Keywords: | Invariance structures Duality Group majorize Compensation Matrix groups. |
本文献已被 SpringerLink 等数据库收录! |
|