The role of prior information in updating regional input-output models

The research reported here focuses on several issues: (1) the specification and measurement of errors in single region input-output models and their impacts on the construction of new models from survey and nonsurvey sources and the updating of existing models; (2) the problems of errors in input-output models when the latter are incorporated into more extensive social accounting systems and (3) linkages between the aggregation issue, error analysis and micro-to-macro modelling within an input-output framework. Empirical analysis is conducted on many of these issues by reference to the State of Washington input-output models for 1963, 1967 and 1972.