Multiproduct Cournot oligopoly

We present a general Cournot model in which each firm may sell multiple quality-differentiated products. We use an upgrades approach, working not with the actual products, but instead with upgrades from one quality to the next. The properties of single-product Cournot models carry over to the supply...

Full description

Bibliographic Details
Main Authors: Myatt, D, Johnson, J
Format: Working paper
Published: University of Oxford 2005
_version_ 1797078647680532480
author Myatt, D
Johnson, J
author_facet Myatt, D
Johnson, J
author_sort Myatt, D
collection OXFORD
description We present a general Cournot model in which each firm may sell multiple quality-differentiated products. We use an upgrades approach, working not with the actual products, but instead with upgrades from one quality to the next. The properties of single-product Cournot models carry over to the supply of upgrades, but not necessarily to the supply of complete products. A firm's product line is determined by the properties of demand, its costs, and competitor characteristics. For symmetric firms, these determinants reduce to returns to quality and changes in demand elasticity as quality increases. For asymmetric firms whose (potentially endogenous) technological capabilities are defined by their maximum feasible qualities, gaps in product lines are determined precisely by the capabilities of lesser rivals. Strategic commitment to product lines prior to quantity competition is considered. Incentives to so commit are markedly different from those under price-setting models.
first_indexed 2024-03-07T00:34:44Z
format Working paper
id oxford-uuid:81047e22-7f92-467c-8c1e-fb5fbabe8520
institution University of Oxford
last_indexed 2024-03-07T00:34:44Z
publishDate 2005
publisher University of Oxford
record_format dspace
spelling oxford-uuid:81047e22-7f92-467c-8c1e-fb5fbabe85202022-03-26T21:27:24ZMultiproduct Cournot oligopolyWorking paperhttp://purl.org/coar/resource_type/c_8042uuid:81047e22-7f92-467c-8c1e-fb5fbabe8520Bulk import via SwordSymplectic ElementsUniversity of Oxford2005Myatt, DJohnson, JWe present a general Cournot model in which each firm may sell multiple quality-differentiated products. We use an upgrades approach, working not with the actual products, but instead with upgrades from one quality to the next. The properties of single-product Cournot models carry over to the supply of upgrades, but not necessarily to the supply of complete products. A firm's product line is determined by the properties of demand, its costs, and competitor characteristics. For symmetric firms, these determinants reduce to returns to quality and changes in demand elasticity as quality increases. For asymmetric firms whose (potentially endogenous) technological capabilities are defined by their maximum feasible qualities, gaps in product lines are determined precisely by the capabilities of lesser rivals. Strategic commitment to product lines prior to quantity competition is considered. Incentives to so commit are markedly different from those under price-setting models.
spellingShingle Myatt, D
Johnson, J
Multiproduct Cournot oligopoly
title Multiproduct Cournot oligopoly
title_full Multiproduct Cournot oligopoly
title_fullStr Multiproduct Cournot oligopoly
title_full_unstemmed Multiproduct Cournot oligopoly
title_short Multiproduct Cournot oligopoly
title_sort multiproduct cournot oligopoly
work_keys_str_mv AT myattd multiproductcournotoligopoly
AT johnsonj multiproductcournotoligopoly