Abstract
This paper presents a procedure for estimating small changes in maximum-likelihood estimates of gravitv model parameters in response to small changes in base period data. The procedure can be used to derive covariance matrices for such parameter estimates from which confidence intervals may be obtained and which may be used for tests of hypotheses. Also the procedure extends a similar procedure for estimating sensitivities, etc., of gravity model forecasts. While this type of problem has been addressed by others, our approach is the only one that is applicable for the large numbers of origin and destination zones one typically encounters.
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© 1985 Springer-Verlag Berlin Heidelberg
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Weber, J.S., Sen, A.K. (1985). On the Sensitivity of Maximum Likelihood Estimates of Gravity Model Parameters. In: Hutchinson, B.G., Nijkamp, P., Batty, M. (eds) Optimization and Discrete Choice in Urban Systems. Lecture Notes in Economics and Mathematical Systems, vol 247. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-51020-5_8
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DOI: https://doi.org/10.1007/978-3-642-51020-5_8
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