and weak technology bases, implying low short-term and slow instantaneous
responses to policy efforts. From the operational standpoint, because it is
modular (an implication of the weakness of intersectoral linkages) and recursive,
as opposed to the truly instantaneous, the model can be programmed and solved
on interactive, user-friendly, and versatile spreadsheet systems such as LOTUS-
123 and JAVELIN.
45 There is no need for a true simultaneous equation solver
such as GAMS. Moreover, because recursive systems are also equally adaptive,
the multilevel framework allows for routine sensitivity analyses and periodic
data revisions, valuable model attributes when working with data-scarce
countries. Relatively simple distributed lag functional forms can be used to
specify the behavioral equations in such a model, which contributes to making it
particularly data frugal from the econometric standpoint. Finally, because it is
structured in interrelated modular blocks, the multilevel framework provides
great flexibility in model design, including level of disaggregation, market
closure, phased model implementation, and decentralized model maintenance.
The Revised Minimum Standard Model (RMSM) and its most recent
extensions (RMSM-X and RMSM-XX) are the standard policy planning tools supported
by the World Bank and widely used by country economists at the Bank. See D. Addison, Revised Minimum Standard Model ( Washington, D.C.: World Bank, 1989) for a compact
description of the generic RMSM.
TABLO is an acronym derived from the initials of its authors, namely: Tommasi Daniel, Aerts Jean Joel, Blaise Leenhardt, and Olive Gaston. It represents the
standard short- to medium-term macroeconomic projection device for the French "Caisse
Centrale de Cooperation Economique". See B. Leenhardt, Exposition de TABLO,
Modéle Standard de Projection 'a Court; et Moyen Terme de la CCCE, Version 1.1 ( Paris: CCCE, DEG, 1988), for a detailed description of TABLO. The model has been applied to
a number of Francophone countries in SSA, including Congo, Gabon, Cameroon, Côte
d'Ivoire, Burkina Faso and Burundi.
T. Condon, and
H. Dahl, "Implementing a
Computable General Equilibrium Model on GAMS: The Cameroon Model," DRD
Discussion Paper 290 ( Washington, D.C.: World Bank, 1987); for Côte d'Ivoire,
M. Noel, "Short-Term Responses to Trade and Incentive Policies in the Ivory
Coast," World Bank Staff Working Paper no. 647 ( 1984).
The construction of a "Macro-Micro Framework for Analysis of the Impact of
Structural Adjustment on the Poor in Sub-Saharan Africa," was part of a comprehensive
research project undertaken by the Cornell Food and Nutrition Policy Program (CFNPP).
See A. H. Sarris, "The Impact of Macroeconomic Adjustment Policies on Real Incomes
of the Poor brought about by Changes in the Agricultural Sector", paper presented to a
workshop on Analytical Methods for Estimating the Short-Term Nutritional and Poverty
Effects of Macroeconomic Adjustment Policies in Developing Countries," Cornell
University, June 30 to July 2, 1987, for a description of the model; also see M. G. Scoobie
, "Macroeconomic Adjustment and the Poor: Toward a Research Strategy",