Correcting the 'self-trade' issue in the GTAPAgg software - Technical paper

Meriem Hamdi-Cherif () and Frédéric Ghersi
Additional contact information
Meriem Hamdi-Cherif: CIRED - centre international de recherche sur l'environnement et le développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique
Frédéric Ghersi: CIRED - centre international de recherche sur l'environnement et le développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique

Working Papers from HAL

Abstract: The successive versions of the GTAP databases are provided with GTAPAgg, a programme that computes values of the series of the database for any regional and sectoral aggregation. A 'self-trade' issue arises from the fact that GTAPAgg aggregates the several series concerned with international trade, like any other series, by simply summing them up : the resulting series include a share of exports and imports happening between the aggregated regions, which should rather be treated as economic flows internal to the region resulting from the aggregation process. This paper details a method that aims at solving this shortcoming, and discusses the importance of doing so. A first section puts the research question into context and discusses its likely importance when using GTAP as a calibration dataset for computable general equilibrium modelling. A second section details the analytics of the method proposed to correct the aggregation process, in the broader framework of a programme extending GTAPAgg to the production of national account matrixes in the standard United Nations format. An appendix provides the code of the extended aggregation programme developed.

Keywords: Input-Output Tables; Trade Analysis; Computable General Equilibrium; Data Aggregation; Tableaux Entrées-Sorties; Commerce International; Équilibre Général Calculable; Agrégation de données (search for similar items in EconPapers)
Date: 2012-04
Note: View the original document on HAL open archive server: https://hal.science/hal-00866558v1
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://hal.science/hal-00866558v1/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:wpaper:hal-00866558

Access Statistics for this paper

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