Duality of welfare and profit maximization

Many economists are aware that the conditions for the efficiency and monopolization in a partial equilibrium framework are the extremes of the Ramsey-Boiteux formula when the Lagrange multiplier for the budget varies. We formalize the duality existing between the welfarist and monopolist constrained...

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Bibliographic Details
Author: Boccard, Nicolas
Format: article
Status:Versión aceptada para publicación
Publication Date:2011
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/24753
Online Access:http://hdl.handle.net/10256/24753
Access Level:Open access
Keyword:Monopolis
Monopolies
Duopolis
Beneficis
Profit
Description
Summary:Many economists are aware that the conditions for the efficiency and monopolization in a partial equilibrium framework are the extremes of the Ramsey-Boiteux formula when the Lagrange multiplier for the budget varies. We formalize the duality existing between the welfarist and monopolist constrained maximization programs by proving the following 'folk theorem': max Welfare s.t. profit ≥ fixed cost ⇔ max Profit s.t. output ≥ minimum