Calibrating mathematical programming spatial models

Calibrage pour les modèles spatiaux de programmation mathématique

Quirino Paris, Sophie Drogué and Giovanni Anania
Additional contact information
Quirino Paris: UC Davis - University of California [Davis] - UC - University of California
Giovanni Anania: UniCal - Università della Calabria [Arcavacata di Rende, Italia] = University of Calabria [Italy] = Université de Calabre [Italie]

Post-Print from HAL

Abstract: Empirical spatial models of trade that are based on a mathematical programming specification often exhibit a large discrepancy between the equilibrium solution and the observed demand, supply and levels of trade flows among countries. This discrepancy may be due to several causes. Assuming, however, that a trade model is not misspecified - in the sense that all the countries involved in the specific commodity trade have been included in the study and that the relevant policy instruments have been taken into account - the cause of discrepancy may be traced either to imprecision of unit transaction costs or to imprecision in the measurement of the demand and supply functions' parameters, or both. Policy assessments based on this type of imprecise models may be unsatisfactory. This paper presents a methodology for calibrating trade models of increasing complexity which are capable of generating solutions that reproduce the commodity trade flows observed in a given base year among all countries. These models may serve as a springboard for assessing the impact of various policies on demand, supply, prices, trade flows, benefits and losses in the countries under study.

Keywords: equilibrium solution; positive mathematical programming; modèle de commerce; solution d'équilibre; calibrage; programmation mathématique positive; trade models; calibration (search for similar items in EconPapers)
Date: 2009-12-13
Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-02754337v1
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Published in IATRC Annual Meeting: "Private Standards and Non-Tariff Barriers: Measurement, Impacts and Legal Issues", International Agricultural Trade Research Center (IATRC). USA., Dec 2009, Fort Myers, United States. 72 p

Downloads: (external link)
https://hal.inrae.fr/hal-02754337v1/document (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: https://EconPapers.repec.org/RePEc:hal:journl:hal-02754337

Access Statistics for this paper

More papers in Post-Print from HAL
Bibliographic data for series maintained by CCSD (hal@ccsd.cnrs.fr).