Some Comments on the GRAS Method
- 21 December 2007
- journal article
- Published by Taylor & Francis in Economic Systems Research
- Vol. 19 (4) , 461-465
- https://doi.org/10.1080/09535310701698613
Abstract
Junius and Oosterhaven (2003) present a RAS matrix balancing variant that can incorporate negative elements in the balancing. There are, however, a couple of issues in the approach described - the first being the handling of zeros in the initial estimate, and the second being the formulation of their minimum-information principle. We present a corrected exposition of GRAS.RAS matrix balancing, GRAS, optimisation,Keywords
This publication has 2 references indexed in Scilit:
- GRAS versus minimizing absolute and squared differences: a commentEconomic Systems Research, 2005
- The Solution of Updating or Regionalizing a Matrix with both Positive and Negative EntriesEconomic Systems Research, 2003