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MULTIPLIER ESTIMATES: TO BIAS OR NOT TO BIAS? *
Author(s) -
Dietzenbacher Erik
Publication year - 2006
Publication title -
journal of regional science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.171
H-Index - 79
eISSN - 1467-9787
pISSN - 0022-4146
DOI - 10.1111/j.1467-9787.2006.00477.x
Subject(s) - multiplier (economics) , econometrics , sample size determination , statistics , contrast (vision) , context (archaeology) , sign (mathematics) , sample (material) , mathematics , economics , computer science , physics , mathematical analysis , macroeconomics , geography , archaeology , artificial intelligence , thermodynamics
It is well known that multiplier estimates within an interindustry context may be biased when the input coefficients are stochastic. Several conditions have been derived under which the estimates were shown to be biased, all with the same sign. In contrast to these analytical results, however, simulations using a stochastic transactions table unexpectedly reported the unbiasedness of multiplier estimates. This note argues that the sample sizes were too small. It is shown that for increased sample sizes the multiplier estimates are all positively and significantly biased, in line with the analytical results, but the biases are very small.