Title A multi-regional generalized RAS updating technique
Authors Temursho, Umed , Oosterhaven, Jan , CARDENETE FLORES, MANUEL ALEJANDRO
External publication No
Means Spat. Econ. Anal.
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 1
JCR Impact 2.31700
SJR Impact 0.68600
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095768534&doi=10.1080%2f17421772.2020.1825782&partnerID=40&md5=6c352e607004ef264cef077aaca91248
Publication date 01/01/2021
ISI 000584191900001
Scopus Id 2-s2.0-85095768534
DOI 10.1080/17421772.2020.1825782
Abstract We present an extension of the generalized RAS (GRAS) technique to a multi-regional (MR) or multi-national setting. The framework is applicable to updating/regionalizing/balancing any partitioned matrix that needs to conform to new row sums, column sums and additional non-overlapping aggregation constraints. The technique, which we refer to as MR-GRAS, also handles non-exhaustive constraints, in which case the missing values are endogenously generated in the updating process. We derive the closed-form solution of MR-GRAS, propose a simple iterative algorithm for its computation, and discuss the main analytical properties of the method as well as the normalization and interpretation of MR-GRAS multipliers. From a wide range of possible MR-GRAS applications, several updating frameworks of national and interregional supply and use tables are examined.
Keywords RAS; multiregional GRAS; partitioned matrix updating; non-survey regionalization methods
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