Updating and estimating a social accounting matrix
This paper offers a social accounting matrix (SAM) based analysis leading to a better understanding of the way various agents in the real economy interact, the way socio-economic groups make their living, the channels through which demand driven interventions may affect the poor, and the potential growth-poverty-inequality nexus. First, the paper reveals the economic structure of Bangladesh with a SAM framework where the macro (national accounts and input-output table) and micro (national surveys) data are juxtaposed under a unified data matrix to portray the meso level interactions of various economic agents, that is production sectors, factors of production, household groups, and other institutions. (2000): Social Accounting Matrix-Based Modelling: Extension to Wellbeing and Environment and Computable General Equilibrium Models (applications using the 19 Ecuador SAMs).
Subsequently, the SAM is used to develop a multiplier simulation model, which enables tracking and quantifying the nature and extent of the linkages among the demand driven shocks (stimuli), economic growth, income generation, and concomitant poverty and distribution implications from the perspective of different socio-economic groups in Bangladesh. Institute of Social Studies, The Hague, The Netherlands.
An example is presented applying the cross entropy approach to data from Mozambique.
An appendix includes a listing of the computer code in the GAMS language used in the procedure.
1994, «Recovering information from incomplete or partial multisectoral economic data», The Review of Economics and Statistics, p.
1951, «On information and sufficiency», The annals of mathematical statistics, p.
It then describes the classical RAS procedure and the entropy difference approach.
Supporting data also come from a variety of sources; e.g., censuses of manufacturing, labor surveys, agricultural data, government accounts, international trade accounts, and household surveys.
Since the input-output accounts are contained within the SAM framework, updating an input-output table can be viewed as a special case of the general SAM estimation problem.
The paper presents the structure of a SAM and a mathematical description of the estimation problem.
2009, «Simsip sam : A tool for the analysis of input-output tables and social accounting matrices», The World Bank, Version, vol.
1999, «Reconciling household surveys and national accounts data using a cross entropy estimation method», TMD discussion papers, , no 50.