A NON-SIGN-PRESERVING RAS VARIANT

Manfred Lenzen, Daniel D. Moran, Arne Geschke and Keiichiro Kanemoto

Economic Systems Research, 2014, vol. 26, issue 2, 197-208

Abstract: We have developed a variant of the RAS generalised iterative scaling method that is able to change the sign between successive iterates, and thus fulfil constraints that are infeasible for existing RAS variants. Like earlier RAS variants, our method can handle constraints on arbitrarily sized and shaped subsets of matrix elements, include reliability of the initial estimate and the external constraints, and deal with negative values.

Date: 2014
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DOI: 10.1080/09535314.2014.897933

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