Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Journal of regional science
31 (1991), S. 0
ISSN:
1467-9787
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geography
,
Economics
Notes:
. We give a very simple formula for obtaining covariance matrices of gravity model parameter estimates. We investigate bias and robustness of parameter estimates, as well as the convergence of the procedure given in Sen (1986) for obtaining these estimates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1467-9787.1991.tb00161.x
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